20 guides
Guides
Short explanations of the task, written to stand next to the tool that does the work.
- GuideHow to convert a salary to an hourly rateUse hours per week and paid weeks per year so a salary and an hourly wage describe the same work.
- GuideHow many hours are in a work year?See why 2,080 hours shows up so often, and when a different work year is the honest denominator.
- GuideHow overtime pay is calculatedSeparate regular hours from overtime hours, then apply the multiplier your policy actually uses.
- GuideWhat time and a half meansTime and a half is 1.5 times the regular hourly rate for the hours your rule marks as overtime.
- GuideHow to calculate a percentageTurn “percent of” into a multiplication by moving the decimal, and keep the whole amount in view.
- GuideHow to calculate percent changeCompare two numbers as a percent of the starting value, and do not divide by the ending value.
- GuideHow to calculate a tipCompute the tip from the bill and a percent, then split the total only after the tip is included once.
- GuideHow to calculate age from a birth dateCount finished years, then finished months, then days, and do not stop at a simple year subtraction.
- GuideHow a fixed loan payment is calculatedSee the standard amortization formula, and what a monthly estimate still leaves out of a lender’s quote.
- GuidePrincipal and interest, separatelyTell the amount you borrowed from the cost of borrowing it, using the same payment every month.
- GuideHow to read a JSON valueRecognize objects, arrays, and the six kinds of values JSON allows before you try to format a file.
- GuideCommon JSON syntax errorsFix the mistakes that make a parser stop: trailing commas, single quotes, comments, and bare keys.
- GuideWord count and character countMatch the limit you were given: words, characters, or characters without spaces are three different numbers.
- GuideAnnual pay and monthly payDivide a yearly salary by 12 for a month, and avoid turning a month into four weeks.
- Guide52 weeks or 50 in a salary year?Pick 52 paid weeks or fewer based on unpaid time off, and say which one you used.
- GuideA part-time salary as an hourly rateConvert a part-time annual amount with the hours that job actually schedules, not a 40-hour week.
- GuideHow to round moneyRound a currency result to the cent at the end, and avoid rounding the inputs first.
- GuideHow to take a percent off a priceSubtract a percent of the price from the price, and do not add stacked discounts into one percent.
- GuideMake a PDF smaller without a random uploaderReduce a PDF by lowering image resolution and dropping extras in a tool you already trust.
- GuideHow to count days between two datesCount calendar days between two dates without losing or double-counting the day a month changes.