54.23% is the change from 319 to 492
Calculation steps:
[( 492 - 319 ) ÷ 319] x 100 = 54.23%
Formula
Percentage change = [(492 - 319) / 319] x 100
Subtract the new number by the original number
492 - 319 = 173
173 ÷ 319 = 0.542319749216301
0.542319749216301 x 100 = 54.23%