-40.69% is the change from 843 to 500
Calculation steps:
[( 500 - 843 ) ÷ 843] x 100 = -40.69%
Formula
Percentage change = [(500 - 843) / 843] x 100
Subtract the new number by the original number
500 - 843 = -343
-343 ÷ 843 = -0.4068801897983393
-0.4068801897983393 x 100 = -40.69%