-86.28% is the change from 838 to 115
Calculation steps:
[( 115 - 838 ) ÷ 838] x 100 = -86.28%
Formula
Percentage change = [(115 - 838) / 838] x 100
Subtract the new number by the original number
115 - 838 = -723
-723 ÷ 838 = -0.8627684964200477
-0.8627684964200477 x 100 = -86.28%