Sztizhgo Sztizhgo Math Answered 1. What percent of 15 is 6? 2. 35% of a number is 21. Find the number. 3. What is 7.5% of 405 4. What is 4% of 6,500.00 pesos 5. Sixteen is 40% of what number? 6. What percent of 88 is 55?