761.25% is the change from 80 to 689
Calculation steps:
[( 689 - 80 ) ÷ 80] x 100 = 761.25%
Formula
Percentage change = [(689 - 80) / 80] x 100
Subtract the new number by the original number
689 - 80 = 609
609 ÷ 80 = 7.6125
7.6125 x 100 = 761.25%
Example