to find your total blood income per second:
from what i measured the distance the mosquito travels from arm to tube and back is about ~25 units(12.5 each way) if the speed is measured in units/second (i used a stopwatch so i may be inaccurate)
mosquito speed=v
t=25 units/v
time for mosquito to travel from arm to tube and back=t
extraction rate=e
max blood=m
t+m/e=t(total)
m/t(total)=total income over time in blood/second
m/(t+m/e)=income
people were wanting a blood per second display and this is the closest to that we can get
also... should make it so that when you turn and go a tiny little bit forward or backwards it doesnt go straight for about a millimeter. its hard to do parallel parking and stuff
ok ive figured it out... all the campaign levels have different "counters" . all ive really found so far is 3 is vampys and 5 is zombies. may be different for different people but idk
 "Space Company"){kind=icon}
 "Idle MOSQUITO"){kind=icon}
 "Idle Tower Defense"){kind=icon}
 "Beyond The Universe"){kind=icon}
 "Abandoned"){kind=icon}
 "School Bus Parking"){kind=icon}
 "Overlod"){kind=icon}
 "Watch Paint Dry"){kind=icon}
 "The Idle RPG"){kind=icon}
 "Idleplex"){kind=icon}
 "Auto-Attack!"){kind=icon}
It's a known bug. It will get fixed asap.