1)what is 45% of 89? and it is base rate or percentage? 2)230% of 90 is what number ?and what is it a base rate or a percentage? 3) 2.5% of 500 is N? what is it percentage base or rate 4)24 is what percent of 80?what is it percentage base or rate 5)30% of what number is 48? what is it percentage rate or base?