How do I calculate the average atomic m when given % of isotopes and m amu? Question details inside.?

Element consists of 62.60% of an isotope with m 186.956 amu and 37.40% of an isotope with m 184.953 amu. How is the average atomic m calculated? What are the steps involved? I ume my results should be in amu and that I can be able to identify the element after worked out.