2019 25,000 2020 30,000 Flexible Budget 2021 32,000 Sales volume Selling Value $55 $55 Revenue $1,375,000 $1,650,000 Manufacturing Costs Material & Labor Overhead 625,000 575,000 1,200,000 750,000 650,000 1,400,000 Gross Margin 175,000 250,000 SGA Costs 115,000 115,000 Operating Income $ 60,000 $ 135,000 a) What would there budget be for 2021? b) What would the equation be for their Operating Income