What's the point? Mystery Cache

The cache is not at the above coordinates but is within 2 miles. Its a pleasant walk to GZ. You are seeking a regular size clik lock box. There is a dearth of larger boxes around here so we have gone for a bigger box. It contains a log book and pencil.

As the title suggests, 'whats the point of geocaching?' Well we all know the point of geocaching is to find the final hide be whatever shape or size that may be. Those with sharp eyes willl see the solution and lock in on GZ pretty quickly. Just solve the puzzle below to find the final coordinates

N 54 54.(blue * white) + (green * blue) + green - white

W 001 45. (orange * white) + (green * black) + blue - 5

You can validate your puzzle solution with certitude.