428.3% is the change from 159 to 840
Calculation steps:
[( 840 - 159 ) ÷ 159] x 100 = 428.3%
Formula
Percentage change = [(840 - 159) / 159] x 100
Subtract the new number by the original number
840 - 159 = 681
681 ÷ 159 = 4.283018867924528
4.283018867924528 x 100 = 428.3%