-27.63% is the change from 883 to 639
Calculation steps:
[( 639 - 883 ) ÷ 883] x 100 = -27.63%
Formula
Percentage change = [(639 - 883) / 883] x 100
Subtract the new number by the original number
639 - 883 = -244
-244 ÷ 883 = -0.27633069082672707
-0.27633069082672707 x 100 = -27.63%