797.4% is the change from 77 to 691
Calculation steps:
[( 691 - 77 ) ÷ 77] x 100 = 797.4%
Formula
Percentage change = [(691 - 77) / 77] x 100
Subtract the new number by the original number
691 - 77 = 614
614 ÷ 77 = 7.974025974025974
7.974025974025974 x 100 = 797.4%