-68.08% is the change from 968 to 309
Calculation steps:
[( 309 - 968 ) ÷ 968] x 100 = -68.08%
Formula
Percentage change = [(309 - 968) / 968] x 100
Subtract the new number by the original number
309 - 968 = -659
-659 ÷ 968 = -0.6807851239669421
-0.6807851239669421 x 100 = -68.08%