I have an 81 my final is 5% of my grade I scored a 0 what is my grade overall now that I have a 0

Question

I have an 81.4 now but the final counts as 5% of grade. I submitted it 1 minute late which makes it a zero what is my final grade in the class. 

Answer 1

Okay, so if 5% of your grade is a 0,  and 95% is an 81.4, 

then

.95 x 81.4 + .05 x 0 = 77.33 %