66.87% is the change from 329 to 549
Calculation steps:
[( 549 - 329 ) ÷ 329] x 100 = 66.87%
Formula
Percentage change = [(549 - 329) / 329] x 100
Subtract the new number by the original number
549 - 329 = 220
220 ÷ 329 = 0.668693009118541
0.668693009118541 x 100 = 66.87%