Lame, but easy help needed

I want to know how many natures runes I need created from level 67 - 99, if possible.

I calculated it myself and I got 277K Nature Runes, and...I'm 99% sure I did something wrong, can someone please calculate?

I'm tired and worn out from doing multiple hours of Geometry, etc homework, and my brain doesn't work properly.

If you can't help, please don't post...ty.

 

You'd need to runecraft around 1,359,382 natures.

http://www.tip.it/runescape/?page=runecrafting_calc.htm

 

Correct but^^

1.3MX 300 is easily A few hundred mills.