Annas business is registered for sales tax purposes. During the quarter ending 31 March 2018, she made the following sales, all of which were subject to sales tax at 17.5%:

$10,000 excluding sales tax

$7,402 including sales tax

$6,745 excluding sales tax

$11,632 including sales tax.

She also made the following purchases all of which were subject to sales tax at 17.5%:

$15,000 excluding sales tax

$12,455 including sales tax

$11,338 including sales tax

$9,870 including sales tax.

Calculate the balance on the sales tax account as at 31 March 2018?