-49.1% is the change from 837 to 426
Calculation steps:
[( 426 - 837 ) ÷ 837] x 100 = -49.1%
Formula
Percentage change = [(426 - 837) / 837] x 100
Subtract the new number by the original number
426 - 837 = -411
-411 ÷ 837 = -0.4910394265232975
-0.4910394265232975 x 100 = -49.1%