I have to analyse the reasons that we did not meet target.
Our target is 4750 m Our target speed is 500m/hr Our target hrs are 9.5
We achieved a speed of 550 m/hr We achieved hrs of 9.1 We achieved a total of 5005m
So Variance of +50 m/hr Variance of -0.4 hrs Variance of +255m
How do I calculate the variance caused by Speed and the Variance caused by hours?