I will give brainliest for the answer with working out :)

Answer:
First Selling Price: OP=$200
Second Selling Price: OP=$25
Third Selling Price: OP=$524
Fouth Selling Price: OP=$10
Step-by-step explanation:
First Selling Price:
OP=(224 * 100) / (100+12)
OP=22400/112
OP=$200
Second Selling Price:
OP=(62.50 * 100) / (100+150)
OP=6250/250
OP=$25
Third Selling Price:
OP=(660.24 * 100) / (100+26)
OP=66024/126
OP=$524
Fourth Selling Price:
OP=(38.50 * 100) / (100+285)
OP=3850/385
OP=$10