PERCENT GAIN CALCULATOR

Find the percentage gain between two values





Percent Gain Calculator – Formula and Examples

This calculator finds the percentage gain between a starting value and an ending value — useful anywhere a value has grown, not just in investing. This is useful for:

- investment or portfolio gains
- muscle mass or strength gains in fitness tracking
- score or rating improvements
- membership or follower growth

Specifically calculating a stock or investment gain, including the dollar amount? Use the stock price percentage change calculator instead, which adds a share-count field.

Formula

Percent gain formula: ending value minus starting value, divided by starting value, times 100

Examples

Example 1: Investment gain
An investment grows from $40 to $55.
(55 − 40) / 40 × 100 = 37.5
The gain is 37.5%.

Example 2: Fitness tracking
A lift goes from 100 lbs to 135 lbs.
(135 − 100) / 100 × 100 = 35
That's a 35% gain in strength.

Example 3: Follower growth
A social account grows from 2,000 to 2,900 followers.
(2900 − 2000) / 2000 × 100 = 45
That's a 45% gain in followers.

Frequently Asked Questions

Is percent gain the same as percentage increase?
Yes — "gain" is just another common way of saying increase, especially in finance and fitness contexts. The percentage increase calculator uses the same formula.

What if the value actually went down?
The calculator will show a negative result, meaning a loss rather than a gain.

Related tools: stock price percentage change calculator and percentage increase calculator.