212.35% is the change from 170 to 531
Calculation steps:
[( 531 - 170 ) ÷ 170] x 100 = 212.35%
Formula
Percentage change = [(531 - 170) / 170] x 100
Subtract the new number by the original number
531 - 170 = 361
361 ÷ 170 = 2.123529411764706
2.123529411764706 x 100 = 212.35%