Respostas

2014-03-03T16:23:25-03:00
350 -------100 %
70 ----------x

x350 =  7000

x= 7000/350

X= 20 %
2014-03-03T16:24:39-03:00
100% ___ 350
  x    ____ 70

100.70 = 7000/350 = 20 %

20 %