Respostas

2014-07-15T14:01:30-03:00
21.990 -------- 100%
x ---------- 11%
x = 11*21990/100
x = 2.418,90
21.990,00 - 2.418,90 = 19.571,10 
Ele passou a custar 19.571,10 reais.
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2014-07-15T14:03:27-03:00
11% de 21.990,00= aprox 1999,00 
21.990,00+1.999,00=23989
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