-4.2% is the change from 880 to 843
Calculation steps:
[( 843 - 880 ) ÷ 880] x 100 = -4.2%
Formula
Percentage change = [(843 - 880) / 880] x 100
Subtract the new number by the original number
843 - 880 = -37
-37 ÷ 880 = -0.042045454545454546
-0.042045454545454546 x 100 = -4.2%