-8.34% is the change from 959 to 879
Calculation steps:
[( 879 - 959 ) ÷ 959] x 100 = -8.34%
Formula
Percentage change = [(879 - 959) / 959] x 100
Subtract the new number by the original number
879 - 959 = -80
-80 ÷ 959 = -0.08342022940563086
-0.08342022940563086 x 100 = -8.34%