Templeton Windows is a small company that installs windows. Its cost structure is as follows: Selling price from each window installation 600 160,000 Annual fixed costs Use (a) the equation method and (b) the contribution method to calculate operating income if Templeton installs 2,600 windows Use (a) the Equation method to calculate operating income if Templeton installs 2,600 windows. Begin by determining the formula to calculate he operating income using the equation method. Then, calculate the operating ncome Abbrev a on used: FC F ed costs, SP Seling price v Variable cost per unit, QQuantity of units sold.) = Operating income Next, use (b) the contribution method to calculate operating income if Templeton installs 2,600 windows Begin by determining the formula to calculate the operating income using the contribution method. Then, calculate the operating income. -Operating income