735% is the change from 80 to 668
Calculation steps:
[( 668 - 80 ) ÷ 80] x 100 = 735%
Formula
Percentage change = [(668 - 80) / 80] x 100
Subtract the new number by the original number
668 - 80 = 588
588 ÷ 80 = 7.35
7.35 x 100 = 735%
Example