151.64% is the change from 397 to 999
Calculation steps:
[( 999 - 397 ) ÷ 397] x 100 = 151.64%
Formula
Percentage change = [(999 - 397) / 397] x 100
Subtract the new number by the original number
999 - 397 = 602
602 ÷ 397 = 1.5163727959697733
1.5163727959697733 x 100 = 151.64%