Answer:
20%
Explanation:
Step one:
given data
Normal price = £24
Sale price of $19.20
From the data above, the price has been marked down by a certain percent
Required
The percent mark down
Step two:
Percent mark down= Normal-sale/Normal*100
Percent mark down= 24-19.20/24*100
Percent mark down= 4.8/24*100
Percent mark down=0.2*100
Percent mark down=20%