67.08% is the change from 322 to 538
Calculation steps:
[( 538 - 322 ) ÷ 322] x 100 = 67.08%
Formula
Percentage change = [(538 - 322) / 322] x 100
Subtract the new number by the original number
538 - 322 = 216
216 ÷ 322 = 0.6708074534161491
0.6708074534161491 x 100 = 67.08%