48.94% is the change from 331 to 493
Calculation steps:
[( 493 - 331 ) ÷ 331] x 100 = 48.94%
Formula
Percentage change = [(493 - 331) / 331] x 100
Subtract the new number by the original number
493 - 331 = 162
162 ÷ 331 = 0.48942598187311176
0.48942598187311176 x 100 = 48.94%