1.28% is the change from 312 to 316
Calculation steps:
[( 316 - 312 ) ÷ 312] x 100 = 1.28%
Formula
Percentage change = [(316 - 312) / 312] x 100
Subtract the new number by the original number
316 - 312 = 4
4 ÷ 312 = 0.01282051282051282
0.01282051282051282 x 100 = 1.28%