All calculators and guides on Percentage Guru

The original value before a percentage increase or discount.

The starting value when you know the rise and the result.

The whole, when you know a part and its percentage.

Net price and VAT from a VAT-inclusive total.

The pre-tax price from a US receipt total.

The price before a discount, from the sale price.

The sale price and the saving from a percentage off.

The bill before the tip, from the total paid.

The tip and the total from a bill and a percentage.

Markup and margin from a cost and a selling price.

The percentage change between two values, signed.

The rise between two values, old to new.

New pay from a raise percentage, per year, month and hour.

The fall between two values, as a percentage.

New CTC from a hike %, or the hike % from old and new CTC, in rupees and LPA.

The percentage difference between two values, neither one the start.

Weight lost as a percentage of your starting weight, with 5% and 10% milestones and a goal weight.

Marks out of a total as a percentage, and the marks needed.

CGPA to a percentage at CBSE’s 9.5, × 10, or your own factor.

A percentage back to CGPA.

Semester SGPAs to a CGPA, with or without credits.

Attendance so far, and how many classes you can miss.

The grade so far from scores and weights.

The score you need on the final to reach a goal.

Unweighted and weighted GPA from letter grades.

Percent error of a measurement against the true value.

Percent yield from actual and theoretical amounts.

Body fat from height, neck, waist and hip (US Navy tape method), with ACE categories.

Win percentage from wins, losses and ties, with the .xxx standings form.

The mean of several percentages, simple or weighted by each group’s size.

Waist ÷ height, with NICE’s healthy, increased and high bands.

The method, the mistake to avoid and worked examples.

Exam-style practice with answers you can check.

Standard and reduced rates for the UK and the EU, with the divisor for each standard rate.

The formulas for reversing a percentage in a spreadsheet.

Put the reverse percentage calculator on your own site.