Chapter 19 typo

[anle9371]

There is an issue on chapter 19, in the following paragraph
For example, if the cumulative sensitivity is, say -0.5 at 40%, we will end up with -0.2 (-0.5 * 0.4) at that point.

It should be
For example, if the cumulative sensitivity is, say -0.5 at 40%, we will end up with -0.2 = (-0.5 * 0.4) at that point.