Weapons of Math Destruction - Pennypack Park Mystery Cache

This cache is not located at the listed coordinates, but they are a good place to park, and access the trailhead!

Pennypack Park is an oasis in Philly! It is an amazing place to explore. I love it! I took a walk this morning along the trail and found a cache. Then realized there was some room for one more. Since this trail is lacking puzzles, here is an easy one for you!

Subtract...

Five hundred sixty-two trillion, eight hundred thirty-nine billion, seven hundred and twenty million, one hundred ninety-six thousand, four hundred and three

...from

Nine hundred sixty-three trillion, three hundred and nine billion, two hundred twenty-seven million, six hundred ninety-nine thousand, four hundred and two

All you need is a calculator! Cache is a film cannister, with a log and some small swag, hidden in a common way! Enjoy your walk on the trail!