-68.39% is the change from 968 to 306
Calculation steps:
[( 306 - 968 ) ÷ 968] x 100 = -68.39%
Formula
Percentage change = [(306 - 968) / 968] x 100
Subtract the new number by the original number
306 - 968 = -662
-662 ÷ 968 = -0.6838842975206612
-0.6838842975206612 x 100 = -68.39%