68.03% is the change from 319 to 536
Calculation steps:
[( 536 - 319 ) ÷ 319] x 100 = 68.03%
Formula
Percentage change = [(536 - 319) / 319] x 100
Subtract the new number by the original number
536 - 319 = 217
217 ÷ 319 = 0.6802507836990596
0.6802507836990596 x 100 = 68.03%