20.12% is the change from 492 to 591
Calculation steps:
[( 591 - 492 ) ÷ 492] x 100 = 20.12%
Formula
Percentage change = [(591 - 492) / 492] x 100
Subtract the new number by the original number
591 - 492 = 99
99 ÷ 492 = 0.20121951219512196
0.20121951219512196 x 100 = 20.12%