1. Pantok Manufacturing, most recent income statement follows: Sales (8,000 units) Total P208,000 Per unit P 26.00 Variable expenses... 144,000 18.00 Contribution margin.. 64,000 P 8.00 Fixed expenses..... ..56,000 Net operating Income......... .P 8,000 Required: Prepare a new contribution format income statement under each of the following conditions (consider each case independently): a. The sales volume increases by 50 units. b. The sales volume declines by 50 units. c. The sales volume is 7,000 units.