-47.61% is the change from 838 to 439
Calculation steps:
[( 439 - 838 ) ÷ 838] x 100 = -47.61%
Formula
Percentage change = [(439 - 838) / 838] x 100
Subtract the new number by the original number
439 - 838 = -399
-399 ÷ 838 = -0.47613365155131265
-0.47613365155131265 x 100 = -47.61%