If i have a pay rate of $21.00 and marked up 78.7% and made a 10% profit. how did i get $41.28?

By multiplying with (1+0.01x) where x is the percentage of increase, monthly pay rate of 21$ after marked up 78.7% and 10% profit will be $41.28.

Step-by-step explanation:

Given that pay rate is 21$ and it is marked up by 78.7% and made a 10% profit.

If any value marked up or made a profit of x% then we have to multiply with (1+0.01x) to find the new value.

New pay after 78.7% marked up using above formula is

Now we have to use above formula again for 10% profit.

Hence new value ≈$41.28