Percentage Decrease Calculator

Calculate the percentage decrease from one value to another. Useful for discounts, weight loss, sales drops, and cost reductions.

The starting or initial value

The ending or final value (should be less than original)

Decrease Amount = Original Value - New Value\nPercentage Decrease = (Decrease Amount / Original Value) * 100\nRemaining Percentage = (New Value / Original Value) * 100
Example 1 (Sale Discount):\nOriginal Price: $200\nSale Price: $150\n\nDecrease Amount = $200 - $150 = $50\nPercentage Decrease = ($50 / $200) * 100 = 25%\nYou save 25% on the purchase.\n\nExample 2 (Weight Loss):\nOriginal Weight: 180 lbs\nNew Weight: 165 lbs\n\nDecrease Amount = 180 - 165 = 15 lbs\nPercentage Decrease = (15 / 180) * 100 = 8.33%

What is percentage decrease?

Percentage decrease measures how much a value has reduced relative to its original value. It is calculated as: ((Original Value - New Value) / Original Value) * 100. For example, if a price drops from $100 to $80, the decrease is 20%.

How do I calculate percentage decrease manually?

Step 1: Subtract the new value from the original value to get the decrease amount. Step 2: Divide the decrease by the original value. Step 3: Multiply by 100 to get the percentage. Formula: ((Original - New) / Original) * 100.

What is the difference between percentage decrease and discount?

They are essentially the same concept. A discount is a specific type of percentage decrease applied to prices. If an item is discounted by 25%, that means the price decreased by 25% from the original price.

Can percentage decrease be more than 100%?

No. A 100% decrease means the value went to zero. You cannot decrease by more than 100% because that would result in a negative value, which is not possible for most real-world quantities like prices or populations.

What are common uses for percentage decrease calculations?

Common uses include: calculating sale discounts, tracking weight loss, measuring business revenue decline, analyzing stock price drops, understanding population decreases, evaluating cost savings, and comparing budget reductions.