9.11% is the change from 538 to 587
Calculation steps:
[( 587 - 538 ) ÷ 538] x 100 = 9.11%
Formula
Percentage change = [(587 - 538) / 538] x 100
Subtract the new number by the original number
587 - 538 = 49
49 ÷ 538 = 0.09107806691449814
0.09107806691449814 x 100 = 9.11%