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Percentage Calculator Guide

This calculator supports multiple percentage calculation modes: what percent one number is of another, percentage of a number, adding/subtracting percentage, and percentage change. Perfect for shopping, financial calculations, and data analysis.

Percentage Formulas

Percentage = (Part ÷ Whole) × 100%. Percentage increase = (New - Original) ÷ Original × 100%. Percentage decrease = (Original - New) ÷ Original × 100%.