Tweak to avoid "ArithmeticException: Non-terminating decimal expansion" :
We force to round the division to 2 decimals, and round the result
Merge pull request #1 from shopperly/master

Tweak to avoid "ArithmeticException: Non-terminating decimal expansion" ...
Merge pull request #39 from myprysm/master

Related to issue #19 for "ArithmeticException: Non-terminating decimal expansion"