169.41% is the change from 304 to 819
Calculation steps:
[( 819 - 304 ) ÷ 304] x 100 = 169.41%
Formula
Percentage change = [(819 - 304) / 304] x 100
Subtract the new number by the original number
819 - 304 = 515
515 ÷ 304 = 1.694078947368421
1.694078947368421 x 100 = 169.41%