-53.46% is the change from 838 to 390
Calculation steps:
[( 390 - 838 ) ÷ 838] x 100 = -53.46%
Formula
Percentage change = [(390 - 838) / 838] x 100
Subtract the new number by the original number
390 - 838 = -448
-448 ÷ 838 = -0.5346062052505967
-0.5346062052505967 x 100 = -53.46%