Respostas

2014-07-24T16:00:54-03:00
32 = 100
4,50 = x

32x = 450,00
x = 450,00/32
x = 14,06%
2014-07-24T16:01:12-03:00
Valor de compra 32,0
venda 32+4,50=36,50

32 ---- 100%
4,50 ----x
32x=4,50*100
32x=450
x=450/32
x=14,06%