101.87% is the change from 321 to 648
Calculation steps:
[( 648 - 321 ) ÷ 321] x 100 = 101.87%
Formula
Percentage change = [(648 - 321) / 321] x 100
Subtract the new number by the original number
648 - 321 = 327
327 ÷ 321 = 1.0186915887850467
1.0186915887850467 x 100 = 101.87%