-87.72% is the change from 627 to 77
Calculation steps:
[( 77 - 627 ) ÷ 627] x 100 = -87.72%
Formula
Percentage change = [(77 - 627) / 627] x 100
Subtract the new number by the original number
77 - 627 = -550
-550 ÷ 627 = -0.8771929824561403
-0.8771929824561403 x 100 = -87.72%