THE Company manufactures and sells a single product for $40 per unit Variable costs are $24 per unit and fixed costs total $180,000. During 2020, THE Company sold 40,000 units of this product to customers. THE Company made the following changes in 2021: 1. decrease the selling price of the product by 25% 2. increase advertising by $30,000 As a result of these changes, the sales in units of this product in 2021 increased 15% from the sales in 2020. THE Company's margin of safety for 2021 was equal to: $300,000 O $310,000 $320,000 $330,000 $340,000 $350,000 none of the above choices are correct