150.13% is the change from 399 to 998
Calculation steps:
[( 998 - 399 ) ÷ 399] x 100 = 150.13%
Formula
Percentage change = [(998 - 399) / 399] x 100
Subtract the new number by the original number
998 - 399 = 599
599 ÷ 399 = 1.5012531328320802
1.5012531328320802 x 100 = 150.13%