That means that in 8 weeks you will be consuming 450 calories on non training days! Hello Auswitz look!
Seriously, there is no need for a constant lowering of calories. The body is not a linear machine. I've had guys diet down to contest shape sticking with the same caloric intake over their whole 16 weeks prep. And I've had others who had to drop down the calories.
Only drop down calories when you don't have a choice... the food you ingest gives you fuel to train and the material to keep your muscle mass.
I prefer to increase workload before cutting more food. When you can't increase workload anymore and your fat loss has halted, drop down food intake a bit.
I do have a college degree in exercise science, but most of my real life knowledge I learned from the trenches... trial and error with myself and experience with clients. But I do not consider myself a nutrition expert. I'm a training guy... Shelby and Dr. Lowery are eons ahead of me in the nutrition department.
I ALWAYS aim to maintain, if not gain, strength while losing fat. That's the only way of being sure that you are not losing any muscle mass. My training partner Nick was beating PRs right up to the week before his contest. Daryl was actually at his strongest 2 weeks before the Olympia.