-82.46% is the change from 838 to 147
Calculation steps:
[( 147 - 838 ) ÷ 838] x 100 = -82.46%
Formula
Percentage change = [(147 - 838) / 838] x 100
Subtract the new number by the original number
147 - 838 = -691
-691 ÷ 838 = -0.8245823389021479
-0.8245823389021479 x 100 = -82.46%