121.8% is the change from 399 to 885
Calculation steps:
[( 885 - 399 ) ÷ 399] x 100 = 121.8%
Formula
Percentage change = [(885 - 399) / 399] x 100
Subtract the new number by the original number
885 - 399 = 486
486 ÷ 399 = 1.218045112781955
1.218045112781955 x 100 = 121.8%