31.57% is the change from 586 to 771
Calculation steps:
[( 771 - 586 ) ÷ 586] x 100 = 31.57%
Formula
Percentage change = [(771 - 586) / 586] x 100
Subtract the new number by the original number
771 - 586 = 185
185 ÷ 586 = 0.31569965870307165
0.31569965870307165 x 100 = 31.57%