64.18% is the change from 603 to 990
Calculation steps:
[( 990 - 603 ) ÷ 603] x 100 = 64.18%
Formula
Percentage change = [(990 - 603) / 603] x 100
Subtract the new number by the original number
990 - 603 = 387
387 ÷ 603 = 0.6417910447761194
0.6417910447761194 x 100 = 64.18%