39.97% is the change from 588 to 823
Calculation steps:
[( 823 - 588 ) ÷ 588] x 100 = 39.97%
Formula
Percentage change = [(823 - 588) / 588] x 100
Subtract the new number by the original number
823 - 588 = 235
235 ÷ 588 = 0.39965986394557823
0.39965986394557823 x 100 = 39.97%