194.5% is the change from 109 to 321
Calculation steps:
[( 321 - 109 ) ÷ 109] x 100 = 194.5%
Formula
Percentage change = [(321 - 109) / 109] x 100
Subtract the new number by the original number
321 - 109 = 212
212 ÷ 109 = 1.944954128440367
1.944954128440367 x 100 = 194.5%