907.5% is the change from 80 to 806
Calculation steps:
[( 806 - 80 ) ÷ 80] x 100 = 907.5%
Formula
Percentage change = [(806 - 80) / 80] x 100
Subtract the new number by the original number
806 - 80 = 726
726 ÷ 80 = 9.075
9.075 x 100 = 907.5%
Example