123.36% is the change from 321 to 717
Calculation steps:
[( 717 - 321 ) ÷ 321] x 100 = 123.36%
Formula
Percentage change = [(717 - 321) / 321] x 100
Subtract the new number by the original number
717 - 321 = 396
396 ÷ 321 = 1.233644859813084
1.233644859813084 x 100 = 123.36%