-28.17% is the change from 426 to 306
Calculation steps:
[( 306 - 426 ) ÷ 426] x 100 = -28.17%
Formula
Percentage change = [(306 - 426) / 426] x 100
Subtract the new number by the original number
306 - 426 = -120
-120 ÷ 426 = -0.28169014084507044
-0.28169014084507044 x 100 = -28.17%