What Percent Of 8 Is 2?

2 = x%*8
2/8 = x%    (divide both sides by 8)
.25 = .25*100% = 25% = x%    (convert decimal fraction to %)

2 is 25% of 8.

3 = y%*10
3/10 = .3 = .30*100% = 30% = y%    (divide both sides by 10, convert to %)

3 is 30% of 10.
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100% = 1, so multiplying by 100% doesn't change anything except the "units"
.30 = .30*100% = 30%    (the equal sign remains absolutely valid throughout)

The answer to the question is 4

3/8=25%

25%

8 * 0.25 = 2