64.35% is the change from 331 to 544
Calculation steps:
[( 544 - 331 ) ÷ 331] x 100 = 64.35%
Formula
Percentage change = [(544 - 331) / 331] x 100
Subtract the new number by the original number
544 - 331 = 213
213 ÷ 331 = 0.6435045317220544
0.6435045317220544 x 100 = 64.35%