What is 9% of 10? 0.9 9% of 10 Copy 9% of 10 = 0.9. Formula UsedResult = (9 ÷ 100) × 10 = 0.9 Frequently Asked Questions What is 9% of 10?0.9. (9 ÷ 100) × 10 = 0.9.How to calculate 9%?Multiply by 0.09 (or multiply by 9 then divide by 100).