-96.78% is the change from 838 to 27
Calculation steps:
[( 27 - 838 ) ÷ 838] x 100 = -96.78%
Formula
Percentage change = [(27 - 838) / 838] x 100
Subtract the new number by the original number
27 - 838 = -811
-811 ÷ 838 = -0.9677804295942721
-0.9677804295942721 x 100 = -96.78%