About the author
Nikita Mondal writes and organizes the site’s explanations of percentage increases, reverse percentages, spreadsheet formulas, and common calculation mistakes.
The articles use direct formulas and worked examples. They are general educational material, not financial, tax, legal, employment, or investment advice.
Editorial approach
Each guide answers one specific question. Examples are recalculated from the stated formula, and terms such as percent, percentage points, and multiplier are defined when they first matter.
How the guides are checked
Before a guide is published, its worked examples are compared with the calculator rules. Edge cases such as a zero starting value, a decrease, decimal inputs, and repeated increases are explained separately rather than hidden behind one result.
The calculation methodology documents the formulas, rounding, accepted inputs, and test coverage used across the site.
Browse the percentage guides