Answer:
8
Step-by-step explanation:
When you divide by a fraction, you can also say that you are multiplying by the reciprocal.
So 


Change the percentages to decimals. 1%=.01 & .01%=.0001. To find the midpoint subtract the 2 numbers. .01-.0001= .0099. Then divide that answer by 2. .0099/2=.00495. Add that to your smallest original number. .0001+.00495=.00505. That number as a percent is .505%.
Answer:
I have made it in the above picture