-68.87% is the change from 877 to 273
Calculation steps:
[( 273 - 877 ) ÷ 877] x 100 = -68.87%
Formula
Percentage change = [(273 - 877) / 877] x 100
Subtract the new number by the original number
273 - 877 = -604
-604 ÷ 877 = -0.6887115165336374
-0.6887115165336374 x 100 = -68.87%