149.37% is the change from 397 to 990
Calculation steps:
[( 990 - 397 ) ÷ 397] x 100 = 149.37%
Formula
Percentage change = [(990 - 397) / 397] x 100
Subtract the new number by the original number
990 - 397 = 593
593 ÷ 397 = 1.4937027707808563
1.4937027707808563 x 100 = 149.37%