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BASED ON THE BELOW MASTER BUDGET MAKE A FLEXIBLE BUDGET FOR 90,000 UNITS. SHOW THE SALES ACTIVITY VARIANCE. MASTER BUDGET FLEXIBLE BUDGET VARIANCE SALES UNITS 100,000.00 SALES REVENUE $1,000,000.00 VARIABLE COSTS VARIABLE MFG COST $380,000.00 VARIABLE SELL AND ADMIN $90,000.00 TOTAL VARIABLE COSTS $470,000.00 CONTRIBUTION MARGIN $530,000.00 FIXED MFG COST $200,000.00 FIXED SALE AND ADMIN COST $140,000,00 TOTAL FIXED COSTS $340,000.00 TOTAL PROFIT $190,000.00