-87.15% is the change from 599 to 77
Calculation steps:
[( 77 - 599 ) ÷ 599] x 100 = -87.15%
Formula
Percentage change = [(77 - 599) / 599] x 100
Subtract the new number by the original number
77 - 599 = -522
-522 ÷ 599 = -0.8714524207011686
-0.8714524207011686 x 100 = -87.15%