I) Minimum Amount of Bonus:

"Eligible employer" is required to pay to every "eligible employee" in every "accounting year" minimum bonus amounting to higher of:

ii)Rs 100.

# Even if employer suffers losses during the accounting year he is bound to pay minimum bonus.

III) Allocable Surplus:

Further, it must be noted that if the allocable surplus is higher than the minimum bonus payable under the Act, the employer is bound to pay bonus at a rate higher than 8.33% depending upon its allocable surplus but upto a maximum of 20%(i.e., maximum bonus). 

In simple words if allocable surplus exceeds minimum amount of bonus, then employer has to pay bonus at a rate of ratio of allocable surplus::eligible salary of employee but upto 20%.