143.61% is the change from 399 to 972
Calculation steps:
[( 972 - 399 ) ÷ 399] x 100 = 143.61%
Formula
Percentage change = [(972 - 399) / 399] x 100
Subtract the new number by the original number
972 - 399 = 573
573 ÷ 399 = 1.4360902255639099
1.4360902255639099 x 100 = 143.61%