Respostas

2014-05-30T15:54:51-03:00
1600---------100%
300----------x
300.100=1600x
1600x=30000
x=30000/1600
x= 18,75%
1 5 1
2014-05-30T16:34:12-03:00
100/1600*300 = 18,75 (18,75%)