If 600 is 80% of the amount I need how many is 100%

It is 750

Working out percentages

We have, 80% * x = 600

or, 80/100 * x = 600

Multiplying both sides by 100 and dividing both sides by 80,

we have x = 600 * 100/80

x = 750

(This is how you do it if u are working it out by hand)

(If you are using a calculator, simply enter 600*100:80, which will give you the answer.)

0.8x=600

x=600/0.8

Therefore, x=750