s1 = 72 s2 = 85
r = 100*(s2 - s1) / s1 #计算小明成绩提升的百分点
print("小明的成绩提升了:","%.1f%%" % r)
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BillCode
s1 = 72 s2 = 85
r = 100*(s2 - s1) / s1 #计算小明成绩提升的百分点
print("小明的成绩提升了:","%.1f%%" % r)