A.0.5 B.1 C.1.5 D.2
A.2 B.4 C.6 D.8
A.(-5%~+2.5%) B.(-2.5%~+2.5%) C.(+5%~-2.5%) D.(+5%~-5%)
A.-15%~+15% B.-20%~+15% C.-20%~+20% D.-15%~+20%