Gemini说

The Correct Way to Describe the Change

If you want to explain the relationship between 100 and 13, you have two accurate options:

A. Percentage Decrease

This measures how much of the original "100" was taken away to get to 13.

• The Calculation: $\frac{100 - 13}{100} \times 100$
• The Result: A 87% decrease.

B. Times-Fold Reduction (The "7" Confusion)

This is likely where the "700%" idea came from. If you divide 100 by 13, you get approximately 7.69.

• The Result: You could say 100 is "nearly 8 times larger" than 13, or that 13 is roughly "1/8th" of the original size.
• While 100 is about 769% of 13, saying it "reduced by 700%" flips the logic incorrectly.