392.4% is the change from 171 to 842
Calculation steps:
[( 842 - 171 ) ÷ 171] x 100 = 392.4%
Formula
Percentage change = [(842 - 171) / 171] x 100
Subtract the new number by the original number
842 - 171 = 671
671 ÷ 171 = 3.9239766081871346
3.9239766081871346 x 100 = 392.4%