Section 28. Except as provided in sections 6 and 7A all sums received pursuant to the excise imposed by this chapter, together with any penalties, forfeitures, interest, costs of suits and fines collected in connection therewith, less all amounts refunded or abated in connection therewith, shall be credited as follows:
(a) Forty per cent of the amount in excess of $169,800,000 received during a fiscal year shall be credited to the Local Aid Fund;
(b) The balance remaining after crediting the amounts required under clause (a) shall be credited to the General Fund.