Okay, first I wasn't sure what math this is, but I'm pretty sure its Algebra.

I'm looking to find the equation for this.

as 1300 ---> 2400

12---> 0

it's an equation of adding to 1300, starting at adding 12, until I reach 2400. but the closer to 2400 the equation gets the smaller the addition becomes - ultimately going to an addition of 0 at exactly 2400. Also the addition cannot be a decimal, therefore it must round up.

mm doing some math if 1300 is +12 and 2400 is +0 this would mean each number on the 1300-2400 scale would be .0109 (or .011 rounded) on the 12 to 0 scale.

The equation I want would be something where if I said 2250 what would be added given that the addition (which shrinks the larger the number gets) loses .011 per additional number over 1300 on the larger scale. I know (doing the match) that it would add 1.55 to 2250 (rounded up to 2)