3.86% is the change from 311 to 323
Calculation steps:
[( 323 - 311 ) ÷ 311] x 100 = 3.86%
Formula
Percentage change = [(323 - 311) / 311] x 100
Subtract the new number by the original number
323 - 311 = 12
12 ÷ 311 = 0.03858520900321544
0.03858520900321544 x 100 = 3.86%