758.75% is the change from 80 to 687
Calculation steps:
[( 687 - 80 ) ÷ 80] x 100 = 758.75%
Formula
Percentage change = [(687 - 80) / 80] x 100
Subtract the new number by the original number
687 - 80 = 607
607 ÷ 80 = 7.5875
7.5875 x 100 = 758.75%
Example