-28.1% is the change from 879 to 632
Calculation steps:
[( 632 - 879 ) ÷ 879] x 100 = -28.1%
Formula
Percentage change = [(632 - 879) / 879] x 100
Subtract the new number by the original number
632 - 879 = -247
-247 ÷ 879 = -0.28100113765642776
-0.28100113765642776 x 100 = -28.1%