745% is the change from 80 to 676
Calculation steps:
[( 676 - 80 ) ÷ 80] x 100 = 745%
Formula
Percentage change = [(676 - 80) / 80] x 100
Subtract the new number by the original number
676 - 80 = 596
596 ÷ 80 = 7.45
7.45 x 100 = 745%
Example