-18.78% is the change from 426 to 346
Calculation steps:
[( 346 - 426 ) ÷ 426] x 100 = -18.78%
Formula
Percentage change = [(346 - 426) / 426] x 100
Subtract the new number by the original number
346 - 426 = -80
-80 ÷ 426 = -0.18779342723004694
-0.18779342723004694 x 100 = -18.78%