Respuesta :
Answer:
down below.
Step-by-step explanation:
20 × 400 = 8000
8000 - 7200 = 800
therefore the % mark up is 10%, because 10% of 8000 is 800.
800 + 7200 = 8000
Answer:
the answer is 11%
Step-by-step explanation:
hit me with praise and love this answer HAHA your welcome