7.42% is the change from 283 to 304
Calculation steps:
[( 304 - 283 ) ÷ 283] x 100 = 7.42%
Formula
Percentage change = [(304 - 283) / 283] x 100
Subtract the new number by the original number
304 - 283 = 21
21 ÷ 283 = 0.07420494699646643
0.07420494699646643 x 100 = 7.42%