160.06% is the change from 323 to 840
Calculation steps:
[( 840 - 323 ) ÷ 323] x 100 = 160.06%
Formula
Percentage change = [(840 - 323) / 323] x 100
Subtract the new number by the original number
840 - 323 = 517
517 ÷ 323 = 1.6006191950464397
1.6006191950464397 x 100 = 160.06%