7ܿ å ؿ p.211 04 Դϴ.
ǰ ִµ.
8000 ڰ ؾ 1190 ̶ ϴµ (2,400 * 5% + 2,200
*10%+3,400*25%)ε 2,400 2,200 3,400 ϴ ڽϴ.
ؼ 3000 2400*5% + 600*10%, 4000 2400 * 5% + 1600*10% ˰ڴµ. (2400ϱ 5%δϱ ݾ 10% ϸ Ǵ° ˰ڴµ) 8000 ϴ ڽϴ.
°
15ܿ 繫 p.553 08
ä 150% ä ں 60%, 40%ΰ
űٰ (40% * 12%) + (60% * 10%) = 10.8%µ ϴ°?
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