198.75% is the change from 321 to 959
Calculation steps:
[( 959 - 321 ) ÷ 321] x 100 = 198.75%
Formula
Percentage change = [(959 - 321) / 321] x 100
Subtract the new number by the original number
959 - 321 = 638
638 ÷ 321 = 1.9875389408099688
1.9875389408099688 x 100 = 198.75%