Answer:
Retained earnings balance for year ended 31st December,2018 is $297m.
Find details in the attached spreadsheet.
Explanation:
In order to compute the closing balance of retained earnings,the retained for the current year was first of all calculated by the formula below:
Retained earnings=Revenue-Expenses-Dividends declared.
Finally,the opening retained earnings of $240m was added to current year retained earnings of $57m gives $297m