-30.77% is the change from 442 to 306
Calculation steps:
[( 306 - 442 ) ÷ 442] x 100 = -30.77%
Formula
Percentage change = [(306 - 442) / 442] x 100
Subtract the new number by the original number
306 - 442 = -136
-136 ÷ 442 = -0.3076923076923077
-0.3076923076923077 x 100 = -30.77%