-47.55% is the change from 837 to 439
Calculation steps:
[( 439 - 837 ) ÷ 837] x 100 = -47.55%
Formula
Percentage change = [(439 - 837) / 837] x 100
Subtract the new number by the original number
439 - 837 = -398
-398 ÷ 837 = -0.4755077658303465
-0.4755077658303465 x 100 = -47.55%