A PERCENTAGE OF ANOTHER QUANTITY
To express a given quantity as a percentage of another quantity, of the same kind, divide the given quantity by the other quantity, multiply the result by 100 and add the % sign.
A
A as percentage of B = ( --------- X 100 ) % of B
B
Example.1) 50 as a percentage of 125.
50
= ( --------- X 100 ) % of 125
125
= 40 % of 125 (Ans.)
Example.2) 25 as a percentage of 200.
25
= ( --------- X 100 ) % of 200
200
= 12.5 % of 200 (Ans.)