155.15% is the change from 388 to 990
Calculation steps:
[( 990 - 388 ) ÷ 388] x 100 = 155.15%
Formula
Percentage change = [(990 - 388) / 388] x 100
Subtract the new number by the original number
990 - 388 = 602
602 ÷ 388 = 1.5515463917525774
1.5515463917525774 x 100 = 155.15%