17.15% is the change from 274 to 321
Calculation steps:
[( 321 - 274 ) ÷ 274] x 100 = 17.15%
Formula
Percentage change = [(321 - 274) / 274] x 100
Subtract the new number by the original number
321 - 274 = 47
47 ÷ 274 = 0.17153284671532848
0.17153284671532848 x 100 = 17.15%