anchor.diff:        <div class="affcalc__row" ng-class="{ 'is-hidden' : !isCheckboxSelected('1') }">
           <div class="affcalc__col--field">
             <%= person.form_row :annual_income do %>
  -            <%= person.errors_for(:annual_income) %>
  +            <%= person.errors_for :annual_income %>
               <%= person.label :annual_income, "id" => "label_annual_income1" do %>
                 <%= t("affordability.activemodel.attributes.mortgage_calculator/person_other.annual_income")%> * <span class="visually-hidden"><%= t("affordability.per_year") %>, <%= t("affordability.required") %></span>
               <% end %>
  
positive.code: 
        <div class="affcalc__row" ng-class="{ 'is-hidden' : !isCheckboxSelected('1') }">
          <div class="affcalc__col--field">
            <%= person.form_row(:extra_income) do %>
              <%= person.errors_for(:extra_income) %>
              <%= person.label :extra_income, "id" => "label_extra_income_1" do %>
                <%= t("affordability.activemodel.attributes.mortgage_calculator/person_other.extra_income")%>
                <span class="visually-hidden"><%= t("affordability.per_year") %></span>
  
negative.code:     <% else %>
        <div class="affcalc__row" ng-class="{ 'is-hidden' : !isCheckboxSelected('1') }">
          <div class="affcalc__col--field">
            <%= person.form_row :monthly_net_income do %>
              <%= person.errors_for :monthly_net_income %>
              <%= person.label :monthly_net_income, "id" => "label_monthly_net_income_1" do %>
                <%= t("affordability.activemodel.attributes.mortgage_calculator/person_other.monthly_net_income")%> * <span class="visually-hidden"><%= t("affordability.per_month") %>, <%= t("affordability.required") %></span>
              <% end %>
  