-67.09% is the change from 863 to 284
Calculation steps:
[( 284 - 863 ) ÷ 863] x 100 = -67.09%
Formula
Percentage change = [(284 - 863) / 863] x 100
Subtract the new number by the original number
284 - 863 = -579
-579 ÷ 863 = -0.6709154113557358
-0.6709154113557358 x 100 = -67.09%