The portion of the functional income statements of Brief Company for 2021 and 2020 are presented below: 2021 2020 Sales P890,000 P800,000 Cost of goods sold 530,000 450,000 Gross margin 360,000...

The portion of the functional income statements of Brief Company for 2021 and 2020 are presented below:

Assuming that the selling price in 2021 is reduced by 11 percent effective January 1, calculate the change in gross profit due to change in unit cost.