At the posted coords you will find a "TP" on that "TP" under the oval tag there are two numbers. Those are all you need to figure out where the final is.
We will call them T (top number) and P (bottom number). Sounds simple, Right?
(Don't use the orange number, We don't have time to explain fractions) LOL
FINAL
N 43 01. T x P
W 71 21. (T x P) - T
FYI
In old school math
"x" means multiplication
"-" means subtraction