s1=72
s2=85
r=s2/s1*100-100
print('小明成绩提升的百分点:{0:.1f}%'.format(r))
print('小明成绩提升的百分点:%.1f%%' % r)
print(f'小明成绩提升的百分点:{r:.1f}%')
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小鳐
s1=72
s2=85
r=s2/s1*100-100
print('小明成绩提升的百分点:{0:.1f}%'.format(r))
print('小明成绩提升的百分点:%.1f%%' % r)
print(f'小明成绩提升的百分点:{r:.1f}%')