57.05% is the change from 319 to 501
Calculation steps:
[( 501 - 319 ) ÷ 319] x 100 = 57.05%
Formula
Percentage change = [(501 - 319) / 319] x 100
Subtract the new number by the original number
501 - 319 = 182
182 ÷ 319 = 0.5705329153605015
0.5705329153605015 x 100 = 57.05%