What is 8% of 30? 2.4 8% of 30 Copy 8% of 30 = 2.4. Formula UsedResult = (8 ÷ 100) × 30 = 2.4 Frequently Asked Questions What is 8% of 30?2.4. (8 ÷ 100) × 30 = 2.4.How to calculate 8%?Multiply by 0.08 (or multiply by 8 then divide by 100).