76.32% is the change from 321 to 566
Calculation steps:
[( 566 - 321 ) ÷ 321] x 100 = 76.32%
Formula
Percentage change = [(566 - 321) / 321] x 100
Subtract the new number by the original number
566 - 321 = 245
245 ÷ 321 = 0.7632398753894081
0.7632398753894081 x 100 = 76.32%