Reuse method

app/models/validations/sales/soft_validations.rb

@@ -1,4 +1,6 @@
 module Validations::Sales::SoftValidations
+  include Validations::Sales::SaleInformationValidations
+
   ALLOWED_INCOME_RANGES_SALES = {
     1 => OpenStruct.new(soft_min: 5000),
     2 => OpenStruct.new(soft_min: 1500),
@@ -89,11 +91,7 @@ module Validations::Sales::SoftValidations
     return unless cashdis || !social_homebuy?
     return unless deposit && value && equity
 
-    !within_tolerance?(mortgage_deposit_and_discount_total, value * equity / 100, 1)
-  end
-
-  def within_tolerance?(expected, actual, tolerance)
-    (expected - actual).abs <= tolerance
+    over_tolerance?(mortgage_deposit_and_discount_total, value * equity / 100, 1)
   end
 
   def mortgage_plus_deposit_less_than_discounted_value?