-82.22% is the change from 838 to 149
Calculation steps:
[( 149 - 838 ) ÷ 838] x 100 = -82.22%
Formula
Percentage change = [(149 - 838) / 838] x 100
Subtract the new number by the original number
149 - 838 = -689
-689 ÷ 838 = -0.8221957040572793
-0.8221957040572793 x 100 = -82.22%