77.26% is the change from 321 to 569
Calculation steps:
[( 569 - 321 ) ÷ 321] x 100 = 77.26%
Formula
Percentage change = [(569 - 321) / 321] x 100
Subtract the new number by the original number
569 - 321 = 248
248 ÷ 321 = 0.7725856697819314
0.7725856697819314 x 100 = 77.26%