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Everyday maths
Percentages, ages, dates and times, without the fuss.
PercentagePercentages of a number, increases and decreases, and one number as a percentage of another.AgeExact age in years, months and days, and the next birthday.Days between datesDays, weeks and working days between two dates, or a date a set time ahead.TimeAdd up hours and minutes, and convert between hours and decimal hours.