781.25% is the change from 80 to 705
Calculation steps:
[( 705 - 80 ) ÷ 80] x 100 = 781.25%
Formula
Percentage change = [(705 - 80) / 80] x 100
Subtract the new number by the original number
705 - 80 = 625
625 ÷ 80 = 7.8125
7.8125 x 100 = 781.25%
Example