213.33% is the change from 15 to 47
Calculation steps:
[( 47 - 15 ) ÷ 15] x 100 = 213.33%
Formula
Percentage change = [(47 - 15) / 15] x 100
Subtract the new number by the original number
47 - 15 = 32
32 ÷ 15 = 2.1333333333333333
2.1333333333333333 x 100 = 213.33%