Marketing Budget Allocation Based on Therapy Effectiveness

A biotechnology firm conducted a survey on the effectiveness of three different therapies for treating a particular disease. The results are summarized in the table below:

Therapies:
Therapy A: 30% effective
Therapy B: 50% effective
Therapy C: 70% effective

The company plans to implement a marketing strategy based on the effectiveness of these therapies.

If the company decides to allocate marketing resources proportionately to their effectiveness rates, what percentage of the total marketing budget should be allocated to Therapy B?