-97.38% is the change from 879 to 23
Calculation steps:
[( 23 - 879 ) ÷ 879] x 100 = -97.38%
Formula
Percentage change = [(23 - 879) / 879] x 100
Subtract the new number by the original number
23 - 879 = -856
-856 ÷ 879 = -0.9738339021615472
-0.9738339021615472 x 100 = -97.38%