Solution :
Production Budget Quarter 2 Quarter 3
Sales 76000 68000
Add:desired closing inventory 3400 4800
Less: opening inventory 3800 3400
Production budget 75600 69400
Material Budget Quarter 2
Consumption 226800 (3 units x 75600)
Add:desired closing inventory 41640 (20% of the subsequent quarter)
(69400 x 3 x 0.20)
Less:opening inventory 45360 (20% of the current quarter)
Raw material to be purchased 223080