We are given the relationships:

1. $A$ is 25% more than $B$, so:
   $A = 1.25B$

2. $B$ is 40% less than $C$, so:
   $B = 0.6C$

3. $C$ is 20% more than $D$, so:
   $C = 1.2D$

Step-by-step Calculation:

Express $A$ in Terms of $D$:

• Substitute $B = 0.6C$ in $A = 1.25B$:
  $A = 1.25(0.6C) = 0.75C$
• Substitute $C = 1.2D$:
  $A = 0.75(1.2D) = 0.9D$

Find Percentage Difference:

We need to find how much less $A$ is compared to $D$, calculated as:

$\frac{D - A}{D} \times 100$

[ \frac{D