273.33% is the change from 15 to 56
Calculation steps:
[( 56 - 15 ) ÷ 15] x 100 = 273.33%
Formula
Percentage change = [(56 - 15) / 15] x 100
Subtract the new number by the original number
56 - 15 = 41
41 ÷ 15 = 2.7333333333333334
2.7333333333333334 x 100 = 273.33%