30 Out of 80 as a Percentage

What is 30 out of 80 as a percentage?
Percentage = Relative ValueReference Value x 100
30/80 as a percent = 30/80 x 100
= (3 x 10)/(8 x 10) x 100
= 3/8 x 100
= 3/2 x 25
= 37.5
30/80 as a percentage is 37.5%.