What is the answer to the question given below?

DRAW UP A FLEXIBLE BUDGET FOR OVERHEAD EXPENSES ON THE BASIS OF THE FOLLOWING DATA AND DETERMINE THE OVERHEAD RATES AT70%, 80% AND 90% PLANT CAPACITY AT 80%, VARIABLE OVERHEADS: INDIRECT LABOUR 12000 RS STORES INCLUDING SPARES 4000RS SEMI VARIABLE OVERHEADS: POWER (30% FIXED, 40% VARIABLE:20000RS