115.26% is the change from 321 to 691
Calculation steps:
[( 691 - 321 ) ÷ 321] x 100 = 115.26%
Formula
Percentage change = [(691 - 321) / 321] x 100
Subtract the new number by the original number
691 - 321 = 370
370 ÷ 321 = 1.1526479750778815
1.1526479750778815 x 100 = 115.26%