-4.25% is the change from 918 to 879
Calculation steps:
[( 879 - 918 ) ÷ 918] x 100 = -4.25%
Formula
Percentage change = [(879 - 918) / 918] x 100
Subtract the new number by the original number
879 - 918 = -39
-39 ÷ 918 = -0.042483660130718956
-0.042483660130718956 x 100 = -4.25%