-37.29% is the change from 877 to 550
Calculation steps:
[( 550 - 877 ) ÷ 877] x 100 = -37.29%
Formula
Percentage change = [(550 - 877) / 877] x 100
Subtract the new number by the original number
550 - 877 = -327
-327 ÷ 877 = -0.3728620296465222
-0.3728620296465222 x 100 = -37.29%