tax value = 3.60 tax rate = 5% To solve for the tax value, we use this formula: Tax value = Original price * tax rate Since the original price is missing, we derive the formula from the above formula: Original price = tax value ÷ tax rate Original price = 3.60 ÷ 5% Original price = 72 The original price is 72. 72 x 5% = 3.60