135% is the change from 220 to 517
Calculation steps:
[( 517 - 220 ) ÷ 220] x 100 = 135%
Formula
Percentage change = [(517 - 220) / 220] x 100
Subtract the new number by the original number
517 - 220 = 297
297 ÷ 220 = 1.35
1.35 x 100 = 135%
Example