(3)
实际售价为 60 × (100 + 10)% × 88% = 58.08(元)
(4)
新的进价为 40 x (100 -10 ) %= 36(元)
新的标价为 60 × 88% = 52.8(元)
利润为:52.8 - 36 = 16.8(元)
利润率为:16.8 / 52.8 = 31.8%
(3)
实际售价为 60 × (100 + 10)% × 88% = 58.08(元)
(4)
新的进价为 40 x (100 -10 ) %= 36(元)
新的标价为 60 × 88% = 52.8(元)
利润为:52.8 - 36 = 16.8(元)
利润率为:16.8 / 52.8 = 31.8%