31.4% is the change from 586 to 770
Calculation steps:
[( 770 - 586 ) ÷ 586] x 100 = 31.4%
Formula
Percentage change = [(770 - 586) / 586] x 100
Subtract the new number by the original number
770 - 586 = 184
184 ÷ 586 = 0.31399317406143346
0.31399317406143346 x 100 = 31.4%