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Share dilution calculator

Calculate the percentage of the enlarged share count represented by new shares.

Calculated result20%

125,000,000 shares after issuance. Existing holders retain 80% before other transactions.

The formula

New shares ÷ (existing shares + new shares) × 100.

How to use the result

This example assumes the existing holders do not participate. It measures ownership dilution, not a change in share price or company value. Warrants, options, convertible securities, buybacks and other changes are excluded unless included in your inputs.

Method reviewed Sep 5, 2026. Examples are illustrative, not company data.