For a Logistic Model, What Kind of Shape Will You $\left( P _ { n + 1 } - P _ { n } \right) / P _ { n }$

Short Answer

For a logistic model, what kind of shape will you get if you graph the quantity $\left( P _ { n + 1 } - P _ { n } \right) / P _ { n }$ against $P _ { n }$ ?