Yes, it does. Calculus, and calculate, meaning the mathematics, comes
from the latin word for stones, used in counting. Think of an abacus
with sliding clay markers.
Calculus also refers to stones in the body. One of the reliable
services that a urologist provides is treatment of stones in the
kidneys, ureters and urethra, and perhaps elsewhere. Along with
vasectomies, erectile dysfunction, and prostate health this forms the
basis of urology practice.

Could be..
All I can tell you is that calculus is the reason I was a business
major in 1965 after starting as an engineering major in 1964.