-67.62% is the change from 945 to 306
Calculation steps:
[( 306 - 945 ) ÷ 945] x 100 = -67.62%
Formula
Percentage change = [(306 - 945) / 945] x 100
Subtract the new number by the original number
306 - 945 = -639
-639 ÷ 945 = -0.6761904761904762
-0.6761904761904762 x 100 = -67.62%