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Understanding pay period calculations is crucial for both budgeting and anticipating financial resources. Pay periods are the intervals at which an employer pays out salaries to employees. The most common types in the U.S. include weekly, biweekly, semi-monthly, and monthly. Beth, in our exercise, gets paid biweekly, which typically amounts to 26 pay periods within a year.

During each of these pay periods, Beth receives a portion of her annual salary. For example, to find out how much Beth earned each pay period last year, divide her annual salary by the number of pay periods:\begin{align*} \text{Biweekly Pay} &= \frac{\text{Annual Salary}}{\text{Number of Biweekly Periods}} \ &= \frac{\(38,350}{26} \ &= \)1,475 \text{ per period.} ewline \text{ After her promotion: } ewline \text{Biweekly Pay} &= \frac{\(46,462}{26} \ &= \)1,787 \text{ per period.} ewline \text{ These calculations are indispensable for employees who are trying to determine how much money they will receive in each paycheck and to calculate the effect of any salary changes due to raises or promotions. }