Answer:
26%
Step-by-step explanation:
You want the scale factor from large to small, given the factor from large to medium is 65% and from medium to small is 40%.
The scale factor can be computed from ...
[tex]\dfrac{\text{small}}{\text{large}}=\dfrac{\text{medium}}{\text{large}}\times\dfrac{\text{small}}{\text{medium}}=0.65\times0.40=0.26=26\%[/tex]
The scale factor from the large shape to the small shape is 26%.