How to calculate percentage weight decrease from weight loss?
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I weigh kg and I lost kg...
By what percentage did my weight decrease?
Type of calculation: Calculating percentage change (decrease).
Calculator usage: Before using the calculator, you must calculate the new weight (80 kg - 8 kg = 72 kg). Then use the Percentage Change CALCULATOR ("What is the percentage change from the Original value to the New value?"). Enter the original weight 80 [Original] and the new weight 72 [New]. The calculator will calculate the percentage decrease.
Explanation using a formula:
First, let's calculate the new weight after the weight loss:
New weight = Original weight - Weight lost
New weight = 80 kg - 8 kg = 72 kg
Now, we are looking for the percentage change from 80 kg to 72 kg.
Formula: ((New value - Original value) / Original value) × 100%
Percentage change = ((72 - 80) / 80) × 100% = (-8 / 80) × 100% = -0.1 × 100% = -10% (the minus sign indicates a decrease)
Alternative method (using the "Part-to-Whole Percentage CALCULATOR"): You can also calculate what percentage 8 kg (change) is of 80 kg (original weight). Use the Part-to-Whole Percentage CALCULATOR ("What percentage of Y is Z?"). Enter 80 [Y] and 8 [Z]. You will get 10%. Since the weight decreased, it is a 10% decrease.
Calculator usage: Before using the calculator, you must calculate the new weight (80 kg - 8 kg = 72 kg). Then use the Percentage Change CALCULATOR ("What is the percentage change from the Original value to the New value?"). Enter the original weight 80 [Original] and the new weight 72 [New]. The calculator will calculate the percentage decrease.
Explanation using a formula:
First, let's calculate the new weight after the weight loss:
New weight = Original weight - Weight lost
New weight = 80 kg - 8 kg = 72 kg
Now, we are looking for the percentage change from 80 kg to 72 kg.
Formula: ((New value - Original value) / Original value) × 100%
Percentage change = ((72 - 80) / 80) × 100% = (-8 / 80) × 100% = -0.1 × 100% = -10% (the minus sign indicates a decrease)
Alternative method (using the "Part-to-Whole Percentage CALCULATOR"): You can also calculate what percentage 8 kg (change) is of 80 kg (original weight). Use the Part-to-Whole Percentage CALCULATOR ("What percentage of Y is Z?"). Enter 80 [Y] and 8 [Z]. You will get 10%. Since the weight decreased, it is a 10% decrease.
Answer: Your weight decreased by %.