72 Out of 80 as a Percentage

What is 72 out of 80 as a percentage?
Percentage = Relative ValueReference Value x 100
72/80 as a percent = 72/80 x 100
= (9 x 8)/(10 x 8) x 100
= 9/10 x 100
= 9 x 10
= 90
72/80 as a percentage is 90%.