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The everyday math you need on demand: percentage change, ratios, averages, and unit conversions.
Instantly calculate % increase between two numbers.
Mean, median, mode, and range for any list of numbers.
Simplify, scale, and compare ratios instantly.
Percentages and ratios aren't exotic — they're what half of all business questions eventually reduce to. "Up how much from last month?" "What's our margin after that discount?" "Ratio of new to returning?" These tools keep it honest: clear formulas, no padding, answer in one look.