-62.46% is the change from 863 to 324
Calculation steps:
[( 324 - 863 ) ÷ 863] x 100 = -62.46%
Formula
Percentage change = [(324 - 863) / 863] x 100
Subtract the new number by the original number
324 - 863 = -539
-539 ÷ 863 = -0.6245654692931634
-0.6245654692931634 x 100 = -62.46%