145.06% is the change from 344 to 843
Calculation steps:
[( 843 - 344 ) ÷ 344] x 100 = 145.06%
Formula
Percentage change = [(843 - 344) / 344] x 100
Subtract the new number by the original number
843 - 344 = 499
499 ÷ 344 = 1.4505813953488371
1.4505813953488371 x 100 = 145.06%