Time difference calculations

[JanaDunk]

I'm working on a detention tracker for my drivers. I need it to tell me how many hours they waited in door minus 4 hours and another column to take the hours in door times $100.00 per hour.

example:

1/19/2023 9:30

1/19/2023 16:30

3 Hours

$300.00

[#2]

@JanaDunk Best explained by a working example. See attached.

[#3]

@Riny_van_Eekelen 

thank you so much. I knew I was making it harder than it was.