Percentages and real life problems!!!

1. Me and my mom where at the market, we wanted to buy 3 apples for 500 Dinars. But when we went to pay the clerk said there is a discount 30% off. Then we were like OMG are you serious! So then she did the calculation and said now the price is 150 Dinar. So then we left with big smiles on out faces!! YAH!! 
2. Me and my dad went to a bike shop to buy my self a new bike, the cost of the bike was 300 dolars. But that was with tax its is 20% less so, all we have to pay is 60$.

How i feel about Fraction, Decimals and Percentages!

The way i feel about Fractions is that i can do most of them and that i can confidently do them at my own pace. But the problem might be is that i can not do the fractions fast. Decimals i am confident in and i can do it very well and be accurate. I can get the answer for a decimal quickly. Percentages i have some problem with because of my multiplication but other then that i can do it slowly but i do get how to get the percentage.