136.82% is the change from 220 to 521
Calculation steps:
[( 521 - 220 ) ÷ 220] x 100 = 136.82%
Formula
Percentage change = [(521 - 220) / 220] x 100
Subtract the new number by the original number
521 - 220 = 301
301 ÷ 220 = 1.3681818181818182
1.3681818181818182 x 100 = 136.82%