-38.79% is the change from 879 to 538
Calculation steps:
[( 538 - 879 ) ÷ 879] x 100 = -38.79%
Formula
Percentage change = [(538 - 879) / 879] x 100
Subtract the new number by the original number
538 - 879 = -341
-341 ÷ 879 = -0.38794084186575656
-0.38794084186575656 x 100 = -38.79%