-97.38% is the change from 877 to 23
Calculation steps:
[( 23 - 877 ) ÷ 877] x 100 = -97.38%
Formula
Percentage change = [(23 - 877) / 877] x 100
Subtract the new number by the original number
23 - 877 = -854
-854 ÷ 877 = -0.9737742303306728
-0.9737742303306728 x 100 = -97.38%