778.75% is the change from 80 to 703
Calculation steps:
[( 703 - 80 ) ÷ 80] x 100 = 778.75%
Formula
Percentage change = [(703 - 80) / 80] x 100
Subtract the new number by the original number
703 - 80 = 623
623 ÷ 80 = 7.7875
7.7875 x 100 = 778.75%
Example