ouvenir sheets to stamp collectors. The postal service purchases the souvenir sheets from a supplier for $1.80 each. St. Vincent has been selling the souvenir sheets for $14.00 each and ordinarily sells about 100,000 units. To test the market, the postal service recently priced a new souvenir sheet at $12.60 and sales increased to 114,000 units. Required: 1. What total contribution margin did the postal service earn when it sold 100,000 sheets at a price of $14.00 each