Mr. Willis is playing a zombie survival game called 7 days to die. He is wondering how good his accuracy is in order to determine whether or not he needs to work on aiming better. He predicted that he could kill 50 zombies with 300 arrows. So after killing a total of 50 zombies he found he had actually used 400 arrows. He also counted the amount of times he hit the zombies. After the 50 kills with 400 arrows he found that he hit the zombies 216 times. Of those 216 only 85 were headshots.

Find the percent error of the number of arrows used between Mr. Willis’s prediction and reality.


What percent of the arrows Mr. Willis fired were headshots?


What percent of Mr. Willis’s shots missed?