32.64% is the change from 242 to 321
Calculation steps:
[( 321 - 242 ) ÷ 242] x 100 = 32.64%
Formula
Percentage change = [(321 - 242) / 242] x 100
Subtract the new number by the original number
321 - 242 = 79
79 ÷ 242 = 0.32644628099173556
0.32644628099173556 x 100 = 32.64%