Basic earnings per share are calculated by dividing the profit or loss attributable to ordinary equity holders of PZU (the numerator) by the weighted average number of ordinary shares outstanding (the denominator) during the period.

The weighted average number of ordinary shares outstanding during the period is the number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during this period and multiplied by a time-weighting factor. The time-weighting factor is the number of days that the shares are outstanding as a proportion of the total number of days in the period.