In general we write D Yt1 Yt1 Yt Yt. Biological exponential growth is the exponential growth of biological organisms. Annual percentage growth rates are useful when considering investment opportunities.
Thenxt1 105 100.
According to some textbooks the specific growth rate is the highest during Log phase. However in my calculation the specific growth rate is the highest just after lag phase. Basic growth rates are simply expressed as the difference between two values in time in terms of a percentage of the first value. When the resources availability is unlimited in the habitat the population.