66.05% is the change from 324 to 538
Calculation steps:
[( 538 - 324 ) ÷ 324] x 100 = 66.05%
Formula
Percentage change = [(538 - 324) / 324] x 100
Subtract the new number by the original number
538 - 324 = 214
214 ÷ 324 = 0.6604938271604939
0.6604938271604939 x 100 = 66.05%