445.45% is the change from 154 to 840
Calculation steps:
[( 840 - 154 ) ÷ 154] x 100 = 445.45%
Formula
Percentage change = [(840 - 154) / 154] x 100
Subtract the new number by the original number
840 - 154 = 686
686 ÷ 154 = 4.454545454545454
4.454545454545454 x 100 = 445.45%