-52.28% is the change from 834 to 398
Calculation steps:
[( 398 - 834 ) ÷ 834] x 100 = -52.28%
Formula
Percentage change = [(398 - 834) / 834] x 100
Subtract the new number by the original number
398 - 834 = -436
-436 ÷ 834 = -0.5227817745803357
-0.5227817745803357 x 100 = -52.28%