-65.99% is the change from 838 to 285
Calculation steps:
[( 285 - 838 ) ÷ 838] x 100 = -65.99%
Formula
Percentage change = [(285 - 838) / 838] x 100
Subtract the new number by the original number
285 - 838 = -553
-553 ÷ 838 = -0.6599045346062052
-0.6599045346062052 x 100 = -65.99%