@sam0090 I am a student myself and don't know much about Math but after doing a lot of research I came across a reliable website called calculadora-de-horas(https://calculadora-de-horas.com/como-calcular-44-horas-de-trabalho-de-segunda-a-sexta-feira/) from here I got information about calculators. I. In this, I learned about the difficult calculation, and here is a noteworthy point I had such problems with my site too, I corrected it after seeing your reply. thanks