Roberto Company presents the following data for its first two years of operations, 2010 and 2011 2010 200,000 2,000 198,000 2011 250,000 3,300 246,700 Number of T-shirts purchase Number of T-shirts discarded Number of T-shirts sold(200,000-2,000):(250,000- 3,300) Average selling price Average cost per T-shirt Administration capacity(number of customers) Administrative costs Administration cost per customer $25 S10 4,000 $1,200,000 S1,162,500 $26 $8.5 3,750 Required: 1. Calculate Robert's operating income in both 2010 and 2011. 2. Calculate the growth components (Revenue effect of growth and Cost effect of growth for variable costs), that explain the change in operating income from 2010 to 2011 3. Calculate the price components (Revenue effect price-recovery, Cost effect of price-recovery for variable costs, and Cost effect of price-recovery for fixed costs) that explain the change in operating income from 2010 to 2011