64.73% is the change from 601 to 990
Calculation steps:
[( 990 - 601 ) ÷ 601] x 100 = 64.73%
Formula
Percentage change = [(990 - 601) / 601] x 100
Subtract the new number by the original number
990 - 601 = 389
389 ÷ 601 = 0.6472545757071547
0.6472545757071547 x 100 = 64.73%