How to Calculate Percentage: 3 Formulas + Examples
How to calculate percentage the right way — the 3 percentage questions, formulas with worked examples, percentage points vs percent, and a Pakistan board-exam example.
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How to Calculate Age From Date of Birth
How to calculate age from date of birth by hand (borrow method), in Excel, and the February 29 leap-year trap — with fully worked examples.
How to Convert Markdown to HTML: 4 Methods
How to convert Markdown to HTML the easy way — online converter, .md file export, Python and pandoc methods, plus an honest table of what converts cleanly.
How to Pick a Random Name: 5 Fair-Draw Methods
How to pick a random name from a list fairly — online picker, Excel formulas, no-repeat draws, and the honest truth about browser randomness for raffles and classrooms.
Plain Text vs Rich Text: 7 Real-File Differences
Plain text vs rich text — what’s the real difference? Measured file sizes, encoding explained, where each format wins, and the plain-text-first pasting trick.
How to Sort Text Alphabetically: 4 Methods
How to sort text alphabetically — the fastest no-code method, Excel/Sheets/Word, and why “Zebra” sorts before “apple” (case, locale, and natural sort explained).
How to Extract Email Addresses: 3 Methods
How to extract email addresses from text — three honest methods ranked by ease, what regex actually catches, and the consent note nobody includes.
How to Compare Two Text Files: 3 Proven Free Methods
How to compare two text files online free — paste, read the diff output, and CLI one-liners, plus a tested look at what “different” really means.
Character Count: With or Without Spaces
Character count with or without spaces — what’s the difference, which one each platform uses, and a per-platform cheat sheet for X, SMS, and essays.
How Many Words Per Page? 5 Reference Tables
How many words per page? Measured reference tables for books, Word documents, and essays — plus why your Word page count is not your book page count.