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 checked against the calculator formula, and terms such as percent, percentage points, and multiplier are defined when they first matter.
Browse the percentage guides