-68.71% is the change from 863 to 270
Calculation steps:
[( 270 - 863 ) ÷ 863] x 100 = -68.71%
Formula
Percentage change = [(270 - 863) / 863] x 100
Subtract the new number by the original number
270 - 863 = -593
-593 ÷ 863 = -0.6871378910776361
-0.6871378910776361 x 100 = -68.71%