122.56% is the change from 399 to 888
Calculation steps:
[( 888 - 399 ) ÷ 399] x 100 = 122.56%
Formula
Percentage change = [(888 - 399) / 399] x 100
Subtract the new number by the original number
888 - 399 = 489
489 ÷ 399 = 1.2255639097744362
1.2255639097744362 x 100 = 122.56%