823.75% is the change from 80 to 739
Calculation steps:
[( 739 - 80 ) ÷ 80] x 100 = 823.75%
Formula
Percentage change = [(739 - 80) / 80] x 100
Subtract the new number by the original number
739 - 80 = 659
659 ÷ 80 = 8.2375
8.2375 x 100 = 823.75%
Example