666.23% is the change from 77 to 590
Calculation steps:
[( 590 - 77 ) ÷ 77] x 100 = 666.23%
Formula
Percentage change = [(590 - 77) / 77] x 100
Subtract the new number by the original number
590 - 77 = 513
513 ÷ 77 = 6.662337662337662
6.662337662337662 x 100 = 666.23%