After a special medicine is introduced into a petri dish full of bacteria, the number of bacteria remaining in the dish decreases rapidly.
* The relationship between the elapsed time t, in seconds, and the number of bacteria, B(t), in the petri
dish is modeled by the following function
B(t) = 8500 • (8/27)^t/3

Complete the following sentence about the rate of change of the number of bacteria.
Round your answer to two decimal places.
Every second, the number of bacteria is multiplied by a factor of _