PRESS SPACE TO ACTIVATE. PRESS C TO CLEAR ALL DATA.
There are 4 variables on the screen. the ones on the right side of the screen show percentage. the one closer to the center shows how much percent of your selected number is calculated. the other one on the right shows the ratio of numbers to primes in how much percent primes there are. the one closer to the center (left) shows the counter that prime number searcher uses. the other left one shows the current number it is checking.