The formula to convert markup to margin is:
Mg=Mp1+Mp
Where:
A markup is a measure of the total percentage above cost that a good is sold at, and the margin is defined as the percentage of gross profit to gross price. To convert markup to margin, divide the markup rate by 1 plus the markup rate.
Let's assume the following:
Step 1: Convert the markup rate to a decimal:
Mp=25%=0.25
Step 2: Calculate the margin rate:
Mg=0.251+0.25=0.251.25=0.2=20%
Therefore, the margin rate is 20%.