12.72% is the change from 283 to 319
Calculation steps:
[( 319 - 283 ) ÷ 283] x 100 = 12.72%
Formula
Percentage change = [(319 - 283) / 283] x 100
Subtract the new number by the original number
319 - 283 = 36
36 ÷ 283 = 0.127208480565371
0.127208480565371 x 100 = 12.72%