Mackenzie is comparing companies she might invest in. The following table shows the current number of research and development (R&D) projects for each company. | Number of R&D projects |Total number of projects | :- | :-: | :-: **Company A** | $3$| $12$ **Company B** | $2$ | $10$ **Company C** | $5$| $15$ **Order the companies by the percentage of projects focused on R&D from least to greatest.** [[☃ sorter 1]]