You answer is 229 multiply first then add (PEMDAS)
Add your savings amount together to get the total
Percent markup=amountmarkedup/original times 100
amountmarkedup=25-13.5.5=11.5
original=13.5
percent markup=11.5/13.5 times 100=0.85 times 100=85% markup
I cannot help you unless I know what ones you need help on
