-50.06% is the change from 837 to 418
Calculation steps:
[( 418 - 837 ) ÷ 837] x 100 = -50.06%
Formula
Percentage change = [(418 - 837) / 837] x 100
Subtract the new number by the original number
418 - 837 = -419
-419 ÷ 837 = -0.5005973715651135
-0.5005973715651135 x 100 = -50.06%