210.53% is the change from 171 to 531
Calculation steps:
[( 531 - 171 ) ÷ 171] x 100 = 210.53%
Formula
Percentage change = [(531 - 171) / 171] x 100
Subtract the new number by the original number
531 - 171 = 360
360 ÷ 171 = 2.1052631578947367
2.1052631578947367 x 100 = 210.53%