To do this equation, you need to convert 4 hours into seconds, which is 14400 seconds. Or you can convert the 8 seconds to hours, which is 0.08 hours. Then, you have a fraction (8/14400) which you can convert into a decimal by dividing it. The answer to this is 0.0006. From here you can convert it to a percentage, which is 0.0006%
-Tony, the GREAT
