-17.9% is the change from 419 to 344
Calculation steps:
[( 344 - 419 ) ÷ 419] x 100 = -17.9%
Formula
Percentage change = [(344 - 419) / 419] x 100
Subtract the new number by the original number
344 - 419 = -75
-75 ÷ 419 = -0.17899761336515513
-0.17899761336515513 x 100 = -17.9%