Your columns aren't lined up on my screen but it looks like you need 14.7 moa at 800. You said you have 25 moa so you have plenty.
The 1 inch ~ = 1 moa is at 100 yards
. At 800 yards 1 moa is 1.047 x 8 or 8.736 inches.
As you go farther out, the arc length increases. Think of a shape like a pizza slice. The farther you go out from the tip, the larger the crust edge will be - WITH THE SAME ANGLE.
It's proportional. So one click covers 1/4 moa at 100, and 1/2 moa at 200, and 1 moa at 400, ....
Since your list says 14.7 moa at 800. you need to come up 14.7 moa. Since you have 4 clicks per moa, you'll need 14.7 x 4 = 58.8 clicks up. Round it to 60 clicks. If you have 25 moa you'll have 25 x 4 = 100 clicks clicks to go up.
At 450 yards, you need to come up 24.6 inches or 5.2 moa, which is 5.2 x 4 = 20.8 clicks (30 rounded).
If you had to come 24.6 inches at 100 yards, that would be your limit. At 450 yards you can cover it easy.
At 800 yards 25 moa is 8.736 x 25 = 218.4 inches. That's the max drop you could dial in on your scope
I could draw a diagram... I will hold on...
also, most ballistic's programs give you an option list the correction in clicks so you don't have to do any math besides counting.
Hope this helps...