Answer:
Dividend in arrears $ 1,000,000 
Total Dividend       $ 2,000,000   
Explanation:
 The dividend at 5% of $100 par value is $5 per unit of shares. Recall, each unit of the preference shares has a par value of $100
Dividend calculation = $5 multiplied by the total unit of shares 
previous year shares dividend is 5 x 200, 000 unit of shares = $ 1,000,000
This year total dividend payout will be current year of $1,000,000 plus previous year of $1,000,000 = $2,000,000