What is 15 Percent of 30? The Answer is 4.5 How to Calculate:

Unknown value 'Y'

100% / 30 = 15% / Y 100 / 30 = 15 / Y Y ( 100 / 30 ) = 15 Y = 15 ( 30 / 100 ) Y = 4.5

Answer: 4.5

Reference: 15 Percent of 30