Triple Z Inc., a developer of radiology equipment, hasstockoutstanding as follows: 12,000 shares of cumulative preferred 2% stock, $150parand 50,000 shares of $10 par common. During its first four years of operations, the following amounts were distributed as dividends: first year, $27,000; second year, $60,000; third year, $80,000; fourth year, $90,000.

How do I calculate dividends per share?