82.87% is the change from 321 to 587
Calculation steps:
[( 587 - 321 ) ÷ 321] x 100 = 82.87%
Formula
Percentage change = [(587 - 321) / 321] x 100
Subtract the new number by the original number
587 - 321 = 266
266 ÷ 321 = 0.8286604361370716
0.8286604361370716 x 100 = 82.87%