63.24% is the change from 321 to 524
Calculation steps:
[( 524 - 321 ) ÷ 321] x 100 = 63.24%
Formula
Percentage change = [(524 - 321) / 321] x 100
Subtract the new number by the original number
524 - 321 = 203
203 ÷ 321 = 0.632398753894081
0.632398753894081 x 100 = 63.24%