In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data
50% = 0.5 = discount rate
original price = $34
sale price = ?
Step 02:
sale price = original price - original price * discount rate
= 34 - 34*0.5
= 34 - 17
= 34
The answer is:
The sale price is $17.