2270% is the change from 30 to 711
Calculation steps:
[( 711 - 30 ) ÷ 30] x 100 = 2270%
Formula
Percentage change = [(711 - 30) / 30] x 100
Subtract the new number by the original number
711 - 30 = 681
681 ÷ 30 = 22.7
22.7 x 100 = 2270%
Example