55.17% is the change from 319 to 495
Calculation steps:
[( 495 - 319 ) ÷ 319] x 100 = 55.17%
Formula
Percentage change = [(495 - 319) / 319] x 100
Subtract the new number by the original number
495 - 319 = 176
176 ÷ 319 = 0.5517241379310345
0.5517241379310345 x 100 = 55.17%