50% is the change from 324 to 486
Calculation steps:
[( 486 - 324 ) ÷ 324] x 100 = 50%
Formula
Percentage change = [(486 - 324) / 324] x 100
Subtract the new number by the original number
486 - 324 = 162
162 ÷ 324 = 0.5
0.5 x 100 = 50%
Example