Lisa spent 80% of her pocket money on some clothes and CDs. The clothes cost $35 and the CDs cost $15. How much pocket money did Lisa have at first?
The total money spent: 35 + 15 = 50 that is part of her initial money
Use the formula: Whole = Part ÷ Percent
Then, the total of pocket money: 50 ÷ 80% = 62.50