85.32% is the change from 538 to 997
Calculation steps:
[( 997 - 538 ) ÷ 538] x 100 = 85.32%
Formula
Percentage change = [(997 - 538) / 538] x 100
Subtract the new number by the original number
997 - 538 = 459
459 ÷ 538 = 0.8531598513011153
0.8531598513011153 x 100 = 85.32%