25.39% is the change from 319 to 400
Calculation steps:
[( 400 - 319 ) ÷ 319] x 100 = 25.39%
Formula
Percentage change = [(400 - 319) / 319] x 100
Subtract the new number by the original number
400 - 319 = 81
81 ÷ 319 = 0.25391849529780564
0.25391849529780564 x 100 = 25.39%