39.35% is the change from 587 to 818
Calculation steps:
[( 818 - 587 ) ÷ 587] x 100 = 39.35%
Formula
Percentage change = [(818 - 587) / 587] x 100
Subtract the new number by the original number
818 - 587 = 231
231 ÷ 587 = 0.393526405451448
0.393526405451448 x 100 = 39.35%