What is qualifying amount for deductions U/s 80 G?

Qualifying amount is limited to 10% of adjusted gross total income (Adjusted gross total income = Gross total income - amount deductible u/s 80C to 80U except 80G - exempt income - long term capital gain - short term capital gain u/s 111A - income taxable at special rate u/s 115A,115AB, 115AC, 115AD and 115D)