50.53% is the change from 663 to 998
Calculation steps:
[( 998 - 663 ) ÷ 663] x 100 = 50.53%
Formula
Percentage change = [(998 - 663) / 663] x 100
Subtract the new number by the original number
998 - 663 = 335
335 ÷ 663 = 0.5052790346907994
0.5052790346907994 x 100 = 50.53%