Answer:
$3,500
Explanation:
If the preferred stock is non-cumulative we only need to calculate dividends for the year they were paid, that is 2019.
For 2019,
Dividend payable for Preferred stock = (50 * 1000) * 0.07 = $3,500
Out of a total payment of $25,000 only $3,500 is payable for preferred stock for the year 2019. If these were cumulative, 3,500 for 3 years would have been payable.
Hope that help.