89.88% is the change from 336 to 638
Calculation steps:
[( 638 - 336 ) ÷ 336] x 100 = 89.88%
Formula
Percentage change = [(638 - 336) / 336] x 100
Subtract the new number by the original number
638 - 336 = 302
302 ÷ 336 = 0.8988095238095238
0.8988095238095238 x 100 = 89.88%