148.24% is the change from 340 to 844
Calculation steps:
[( 844 - 340 ) ÷ 340] x 100 = 148.24%
Formula
Percentage change = [(844 - 340) / 340] x 100
Subtract the new number by the original number
844 - 340 = 504
504 ÷ 340 = 1.4823529411764707
1.4823529411764707 x 100 = 148.24%