321.34% is the change from 164 to 691
Calculation steps:
[( 691 - 164 ) ÷ 164] x 100 = 321.34%
Formula
Percentage change = [(691 - 164) / 164] x 100
Subtract the new number by the original number
691 - 164 = 527
527 ÷ 164 = 3.2134146341463414
3.2134146341463414 x 100 = 321.34%