The journal entry on May 1 was:
A debit to Prepaid Insurance for 15,600
And a credit to cash for 15,600
Prepaid Insurance is the share of an insurance premium that
has been paid in early and has not finished as of the balance sheet date.
The monthly insurance payment for two years is computed by 15,600/24
months which is $650 per month.
At December 31 the adjusting entry would be:
A debit to Insurance Expense 5,200
And a credit to Prepaid Insurance for 5,200
5,200 is computed by:
650 x 8 months (starting from May 1 to December 31) = 5,200