anchor.diff:              Person 2 Annual Income
             </label>
             <input type="text" ng-pattern="/^\d+$/" name="personTwoAnnualIncome" class="form-control" ng-model="affordability.personTwoAnnualIncome" placeholder="Your yearly income"  autofocus />
  +          <p ng-show="affordability_form.personTwoAnnualIncome.$invalid && !affordability_form.personTwoAnnualIncome.$pristine" class="help-block">Please enter an amount</p>
           </fieldset>
   
           <fieldset>
  
positive.code:             Person 2 Extra Income
            </label>
            <input type="text" ng-pattern="/^\d+$/" class="form-control" name="personTwoExtraIncome" ng-model="affordability.personTwoExtraIncome" placeholder="Any extra income"  />
          </fieldset>
        </div>
  
  
negative.code:           Extra Income
          </label>
          <input type="text" ng-pattern="/^\d+$/" class="form-control" name="extraIncome" ng-model="affordability.extraIncome" placeholder="Any extra income"  />
          <p ng-show="affordability_form.extraIncome.$invalid && !affordability_form.extraIncome.$pristine" class="help-block">Only numbers</p>
        </fieldset>
  
        <div ng-show="affordability.selectedOption == 2">
  