up vote 8 down vote accepted. I fixed a leak in my coolant tank (which is the exact same plastic) using a few strips of plastic* cut from a spray bottle I bought at a hardware store. You can either use a heat gun or a soldering iron to melt the plastic into place.
Hourly Wage: Enter your hourly wage. Number of paid hours per week: Average number of hours you are paid for each work week. Number of days you work per week. Average number of days you work during each week: Annual Salary: This is what your hourly pay translates into per year, (HOURLY PAY X HOURS PER WEEK X 52.14).
3. Multiply to calculate your annual salary if you work a fixed number of hours per week. Multiply your hourly salary by the number of hours you work per week to calculate your weekly salary. Multiply this figure by 52, the number of weeks per year, to work out your annual salary.1  For instance, if you work 40 hours per week and you earn $19 per hour, calculate your weekly salary with the equation 40 x $19 = $760.verage your weekly number of hours if you work a different amount each week. If you work a different number of hours each week, keep track of your weekly hours for one month. Then find the average number of hours per week you worked, and multiply to find your annual salary.