30.99% is the change from 710 to 930
Calculation steps:
[( 930 - 710 ) ÷ 710] x 100 = 30.99%
Formula
Percentage change = [(930 - 710) / 710] x 100
Subtract the new number by the original number
930 - 710 = 220
220 ÷ 710 = 0.30985915492957744
0.30985915492957744 x 100 = 30.99%