-63.17% is the change from 877 to 323
Calculation steps:
[( 323 - 877 ) ÷ 877] x 100 = -63.17%
Formula
Percentage change = [(323 - 877) / 877] x 100
Subtract the new number by the original number
323 - 877 = -554
-554 ÷ 877 = -0.6316989737742303
-0.6316989737742303 x 100 = -63.17%