diff --git a/README.md b/README.md
index 6047820..bc29447 100644
--- a/README.md
+++ b/README.md
@@ -101,7 +101,8 @@ The following is a list of test statistics for the project by date and commit
 | 2022-06-08 | [a798ac3](https://github.com/stamp-web/stamp-web-aurelia/commit/a798ac36ac61a06258729173d8fa5cacf6a0ff24) | 102             | 18.41%        |
 | 2022-06-08 | [e64d964](https://github.com/stamp-web/stamp-web-aurelia/commit/e64d964202e6b9930dda0712837682a71ad0d1db) | 104             | 18.59%        |
 | 2023-01-04 | [359948b](https://github.com/stamp-web/stamp-web-aurelia/commit/359948b689f088ec8c8554044cab96c24ffe1a77) | 107             | 18.80%        | 
-| 2023-09-21 | | 123 | 20.27%        |
+| 2023-09-21 | [4412730](https://github.com/stamp-web/stamp-web-aurelia/commit/441273055dc1af57257aba29f929923799563325) | 123             | 20.27%        |
+| 2023-10-08 |  | 134             | 20.68%        |
 
 ## Optimizing for Browsers
 
diff --git a/src/resources/value-converters/as-number.js b/src/resources/value-converters/as-number.js
index 4093e5b..6394699 100644
--- a/src/resources/value-converters/as-number.js
+++ b/src/resources/value-converters/as-number.js
@@ -14,30 +14,26 @@
  limitations under the License.
  */
 import {valueConverter} from 'aurelia-framework';
+import _ from 'lodash';
 
 @valueConverter("asNumber")
 export class asNumberValueConverter {
 
     toView(value, asFloat = false) {
         if (value) {
-            try {
-                value = asFloat ? parseFloat(value.toString()) : parseInt(value.toString());
-            } catch (err) {
-                console.log("Could not parse '" + value + "' to a number.");
-                value = -1;
-            }
+            value = asFloat ? parseFloat(value.toString()) : parseInt(value.toString());
+        }
+        if (_.isNaN(value)) {
+            value = undefined;
         }
         return value;
     }
 
     fromView(value, asFloat = false) {
         if(value) {
-            try {
-                value = (asFloat) ? parseFloat(value) : parseInt(value);
-            } catch( err ) {
-                console.log("Could not parse '" + value + "' to a number.");
-                value = -1;
-            }
+            value = (asFloat) ? parseFloat(value) : parseInt(value);
+        } if (_.isNaN(value)) {
+            value = undefined;
         }
         return value;
     }
diff --git a/src/resources/views/manage/list.js b/src/resources/views/manage/list.js
index 50b807e..b804d50 100644
--- a/src/resources/views/manage/list.js
+++ b/src/resources/views/manage/list.js
@@ -146,6 +146,8 @@ export class EntityListManage {
                 var cacheVal = JSON.parse(filterCache);
                 if(cacheVal[fieldDef.field]) {
                     this.filterText = cacheVal[fieldDef.field];
+                } else {
+                    this.filterText = '';
                 }
             }
         }
diff --git a/test/unit/value-converters/as-currency-formatted.spec.js b/test/unit/resources/value-converters/as-currency-formatted.spec.js
similarity index 100%
rename from test/unit/value-converters/as-currency-formatted.spec.js
rename to test/unit/resources/value-converters/as-currency-formatted.spec.js
diff --git a/test/unit/resources/value-converters/as-number.spec.js b/test/unit/resources/value-converters/as-number.spec.js
new file mode 100644
index 0000000..c1fb31e
--- /dev/null
+++ b/test/unit/resources/value-converters/as-number.spec.js
@@ -0,0 +1,91 @@
+/**
+ Copyright 2023 Jason Drake
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+import {asNumberValueConverter} from 'resources/value-converters/as-number';
+
+describe('asNumberValueConverter test suite', () => {
+
+    describe('toView tests', () => {
+        let cmp;
+
+        beforeEach(() => {
+            cmp = new asNumberValueConverter();
+        });
+
+        it('handles NaN', () => {
+            let value = cmp.toView(NaN);
+            expect(value).toBeUndefined();
+        });
+
+        it('handles integer', () => {
+            let value = cmp.toView(53);
+            expect(value).toBe(53);
+        });
+
+        it('handles real number as integer', () => {
+            let value = cmp.toView(21.25, false);
+            expect(value).toBe(21);
+        });
+
+        it('handles string real number as integer ', () => {
+            let value = cmp.toView('42.75', false);
+            expect(value).toBe(42);
+        });
+
+        it('handles string real number as real number ', () => {
+            let value = cmp.toView('63.75', true);
+            expect(value).toBe(63.75);
+        });
+    });
+
+    describe('fromView tests', () => {
+
+        let cmp;
+
+        beforeEach(() => {
+            cmp = new asNumberValueConverter();
+        });
+
+        it('handles NaN', () => {
+            let value = cmp.fromView(NaN);
+            expect(value).toBeUndefined();
+        });
+
+        it('handles positive integer value', () => {
+            let value = cmp.fromView('54');
+            expect(value).toBe(54);
+        });
+
+        it('handles positive real number value as integer', () => {
+            let value = cmp.fromView('52.5');
+            expect(value).toBe(52);
+        });
+
+        it('handles negative number value', () => {
+            let value = cmp.fromView('-23');
+            expect(value).toBe(-23);
+        });
+
+        it('handles postive real number value as float', () => {
+            let value = cmp.fromView('35.25', true);
+            expect(value).toBe(35.25);
+        });
+
+        it('handles String invalid number', () => {
+            let value = cmp.fromView('ThisIsNotANumber');
+            expect(value).toBeUndefined();
+        });
+    });
+});