102.49% is the change from 321 to 650
Calculation steps:
[( 650 - 321 ) ÷ 321] x 100 = 102.49%
Formula
Percentage change = [(650 - 321) / 321] x 100
Subtract the new number by the original number
650 - 321 = 329
329 ÷ 321 = 1.0249221183800623
1.0249221183800623 x 100 = 102.49%