The matrix in the form of a square table contains 169 possible combinations without taking into account specific suits. A percentage is the percentage of hands in a particular range relative to the maximum number of hands. In total, 1326 unique combinations are possible, taking into account the suits. These 1326 combinations make up 100%. The matrix is often used in poker starting hand charts. A text format is needed in programs for working with spectra. But the percentage expression is especially important, because the HUD displays the frequency of actions in specific situations as a percentage.