-0.24% is the change from 843 to 841
Calculation steps:
[( 841 - 843 ) ÷ 843] x 100 = -0.24%
Formula
Percentage change = [(841 - 843) / 843] x 100
Subtract the new number by the original number
841 - 843 = -2
-2 ÷ 843 = -0.002372479240806643
-0.002372479240806643 x 100 = -0.24%