116.29% is the change from 399 to 863
Calculation steps:
[( 863 - 399 ) ÷ 399] x 100 = 116.29%
Formula
Percentage change = [(863 - 399) / 399] x 100
Subtract the new number by the original number
863 - 399 = 464
464 ÷ 399 = 1.162907268170426
1.162907268170426 x 100 = 116.29%