Only change strictness when discount is present

app/models/validations/sales/sale_information_validations.rb

@@ -50,7 +50,7 @@ module Validations::Sales::SaleInformationValidations
     # When a percentage discount is used, a percentage tolerance is needed to account for rounding errors
     tolerance = record.discount ? record.value * 0.05 / 100 : 1
 
-    if over_tolerance?(record.mortgage_deposit_and_grant_total, record.value_with_discount, tolerance, strict: true) && record.discounted_ownership_sale?
+    if over_tolerance?(record.mortgage_deposit_and_grant_total, record.value_with_discount, tolerance, strict: !record.discount.nil?) && record.discounted_ownership_sale?
       %i[mortgageused mortgage value deposit ownershipsch discount grant].each do |field|
         record.errors.add field, I18n.t("validations.sale_information.discounted_ownership_value", mortgage_deposit_and_grant_total: record.field_formatted_as_currency("mortgage_deposit_and_grant_total"), value_with_discount: record.field_formatted_as_currency("value_with_discount"))
       end