-67.52% is the change from 942 to 306
Calculation steps:
[( 306 - 942 ) ÷ 942] x 100 = -67.52%
Formula
Percentage change = [(306 - 942) / 942] x 100
Subtract the new number by the original number
306 - 942 = -636
-636 ÷ 942 = -0.6751592356687898
-0.6751592356687898 x 100 = -67.52%