30.68% is the change from 590 to 771
Calculation steps:
[( 771 - 590 ) ÷ 590] x 100 = 30.68%
Formula
Percentage change = [(771 - 590) / 590] x 100
Subtract the new number by the original number
771 - 590 = 181
181 ÷ 590 = 0.30677966101694915
0.30677966101694915 x 100 = 30.68%