MHB Is this correct? (Final grade calculation)

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my instructor has everything in percentages not points. the final was 20% of the overall grade. up until the final (80% of the course) i had a 92%. and i received an 88% on the final exam. so what i did was 0.8*92=73.6 and then i did 0.2*88=17.6. i then added the two and i got 91.something. did i calculate my final grade right?
 
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Yes, I get 91.2 as your final grade.
 
Yes!
 

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