256.25% is the change from 16 to 57
Calculation steps:
[( 57 - 16 ) ÷ 16] x 100 = 256.25%
Formula
Percentage change = [(57 - 16) / 16] x 100
Subtract the new number by the original number
57 - 16 = 41
41 ÷ 16 = 2.5625
2.5625 x 100 = 256.25%
Example