825% is the change from 80 to 740
Calculation steps:
[( 740 - 80 ) ÷ 80] x 100 = 825%
Formula
Percentage change = [(740 - 80) / 80] x 100
Subtract the new number by the original number
740 - 80 = 660
660 ÷ 80 = 8.25
8.25 x 100 = 825%
Example