7.72% is the change from 298 to 321
Calculation steps:
[( 321 - 298 ) ÷ 298] x 100 = 7.72%
Formula
Percentage change = [(321 - 298) / 298] x 100
Subtract the new number by the original number
321 - 298 = 23
23 ÷ 298 = 0.07718120805369127
0.07718120805369127 x 100 = 7.72%