149.54% is the change from 329 to 821
Calculation steps:
[( 821 - 329 ) ÷ 329] x 100 = 149.54%
Formula
Percentage change = [(821 - 329) / 329] x 100
Subtract the new number by the original number
821 - 329 = 492
492 ÷ 329 = 1.4954407294832828
1.4954407294832828 x 100 = 149.54%