-61.3% is the change from 863 to 334
Calculation steps:
[( 334 - 863 ) ÷ 863] x 100 = -61.3%
Formula
Percentage change = [(334 - 863) / 863] x 100
Subtract the new number by the original number
334 - 863 = -529
-529 ÷ 863 = -0.6129779837775203
-0.6129779837775203 x 100 = -61.3%