Find the percentage decrease in the wight of the body when taken to a heigh of `16 km` above the surface of Earth. Radius of the earth is `6400 km`.

Explanation

To find the percentage decrease in the weight of a body when taken to a height of 16 km above the surface of the Earth, we can follow these steps:

### Step 1: Understand the relationship between weight and gravitational acceleration
The weight of a body is given by the formula:
\[ W = mg \]
where \( m \) is the mass of the body and \( g \) is the acceleration due to gravity at the surface of the Earth.

### Step 2: Calculate the new gravitational acceleration at height \( h \)
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