145.86% is the change from 399 to 981
Calculation steps:
[( 981 - 399 ) ÷ 399] x 100 = 145.86%
Formula
Percentage change = [(981 - 399) / 399] x 100
Subtract the new number by the original number
981 - 399 = 582
582 ÷ 399 = 1.4586466165413534
1.4586466165413534 x 100 = 145.86%