Employees' basic salary exceeds ₹21,000 due to a backdated increment, and bonuses are paid as part of the gross salary. The basic salary of some employees exceeds ₹21,000 because they are not part of the bonus, and we have already paid them bonuses. When calculating arrears, subtracting the bonus (new rate) from the bonus (old rate) results in negative values. How can we account for this negative bonus amount in our accounting records?