EXPLANATION
Let's see the facts:
The increasing rate is:
[tex]Increa\sin g\text{ rate=}\frac{5}{3}=1.67[/tex]The increasing rate is 1.67
In percentage this is:
[tex]Increa\sin g=\frac{3}{5}\cdot100=\frac{3}{5}\cdot100=60[/tex]The percentage of increasing is of 60%.