Blesses You Mystery Cache

The cache is not at the posted coordinates.
To find the cache you will have to do a little math and figure out a small puzzle.
Clues to solving the Lat & Long are at posted coords.
The final cache location will be N 39 18.xxx, W 076 37.yyy

To solve for xxx find at GZ zzz-E etched into the face of one of stones in the stone wall
Just left of the stairs leading up to the statue. Stand in font of the wall lined up with the
resting hand of the statue
    ((550+zzz)/25) - 40 + zzz) = xxx.

☺Yea I know I could have saved you some time but, that was more fun was it not.☺

To solve for yyy you will need a word to solve this portion.
The word you are looking for is based on what is on the stair riser.
You need to find a 5 letter word for what you see. Don't waste time trying to make an
association because there is none. Again this is about what you see.
Once you have figured out the correct word you will need to drop one letter.
The letter you drop will leave something magical(Fantasy).
Take the word you are left with and sum up the value of each letter
    274 + sum = yyy