Answer:
The single decimal multiplier is 1.26.
Explanation:
Multipliers:
For a decrease of a%, we multiply by:
![(100-a)/(100)](https://img.qammunity.org/2022/formulas/mathematics/college/ogdg3fy7nkndrr0si967zajdz8xa6vylh7.png)
For a increase of a%, we multiply by:
![(100+a)/(100)](https://img.qammunity.org/2022/formulas/mathematics/college/yfqk10m2dqtid225garjmygmnb8at76q4t.png)
For consecutive changes, we multiply the multipliers.
Increase of 5%
Multiply by
![(100+5)/(100) = (105)/(100) = 1.05](https://img.qammunity.org/2022/formulas/mathematics/college/essoqga2xte55sa2jkdnvjxcj48x1qpp98.png)
Increase of 20%
Multiply by
![(100+20)/(100) = (120)/(100) = 1.2](https://img.qammunity.org/2022/formulas/mathematics/college/r3xnhw3yknn59hio7yjv9qvj544yeoyus0.png)
Consecutive:
1.05*1.2 = 1.26
The single decimal multiplier is 1.26.