So given a Match value of 100 you want to match against a range for any value between 95 and 105 ? Yes?
Assuming there's only going to be one value returned
=INDEX(C1:C20,MATCH(1,(A1*95%<=B1:B20)*(A1*105%>=B1:B20),0),1)
Array formula, use Ctrl-Shift-Enter
where A1 is the value to match
B1:B20 is the range with to match against
C1:C20 is the value to return