764.2% is the change from 81 to 700
Calculation steps:
[( 700 - 81 ) ÷ 81] x 100 = 764.2%
Formula
Percentage change = [(700 - 81) / 81] x 100
Subtract the new number by the original number
700 - 81 = 619
619 ÷ 81 = 7.6419753086419755
7.6419753086419755 x 100 = 764.2%