906.25% is the change from 80 to 805
Calculation steps:
[( 805 - 80 ) ÷ 80] x 100 = 906.25%
Formula
Percentage change = [(805 - 80) / 80] x 100
Subtract the new number by the original number
805 - 80 = 725
725 ÷ 80 = 9.0625
9.0625 x 100 = 906.25%
Example