credit_discount_from_sale - step 1  credit_discount_from_sale - step 1.5  credit_discount_from_sale - step 2 // credit_discount_from_sale - step 2.5 // credit_discount_from_sale - step 2.5-1 // credit_discount_from_sale - step 2.5-2 // 

credit_discount_from_sale - step 2.6 // credit_discount_from_sale - step 2.7 // credit_discount_from_sale - step 2.8 // credit_discount_from_sale - step 2.9 // credit_discount_from_sale - step 3 // credit_discount_from_sale - step 3.0 // credit_discount_from_sale - step 3.1 // credit_discount_from_sale - step 3.2 // end of functiontesting functions have runthis last statement is running