667.53% is the change from 77 to 591
Calculation steps:
[( 591 - 77 ) ÷ 77] x 100 = 667.53%
Formula
Percentage change = [(591 - 77) / 77] x 100
Subtract the new number by the original number
591 - 77 = 514
514 ÷ 77 = 6.675324675324675
6.675324675324675 x 100 = 667.53%