65.28% is the change from 599 to 990
Calculation steps:
[( 990 - 599 ) ÷ 599] x 100 = 65.28%
Formula
Percentage change = [(990 - 599) / 599] x 100
Subtract the new number by the original number
990 - 599 = 391
391 ÷ 599 = 0.6527545909849749
0.6527545909849749 x 100 = 65.28%