# php get percentage of two numbers – 3 Ways to calculate a percentage change (increase and decrease) from 2 values in PHP

php get percentage of two numbers: Given 2 numbers old and new, where ‘new’ is incremented or decremented by some percentage of ‘old’. The task is to find out that percentage.

## php get percentage of two numbers

Contents

Calculate percentage saved between two numbers using PHP: Calculate the percent difference between two numbers.

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Let’s say you have two numbers, 50 and 25.

```
25/50*100 = 75.
So 25 is 75% of 50.

50/25*100 = 133.
So 50 is 133% of 25.

```

```The percentage increase from 25 to 50 is:
(50-25)/25 * 100 = 33%

The percentage decrease from 50 to 25 is:
(50-25)/50 * 100 = 25%.

```

These calculations hold true whatever your two numbers.

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Don’t Miss: Calculate Percentage In Php

### How to calculate percentage in PHP?

here you call the function to calculate percentage

```function getCalculatePercentageChange(\$percentage, \$of)
{
\$percent = \$percentage / \$of;
return  number_format( \$percent * 100, 2 ) . '%';
}

getCalculatePercentageChange(10, 100);
```

### PHP: Calculate the percent difference between two numbers.

```<?php

\$first_vlaue = 24;
\$second_value = 8.25;

\$percentChange = (1 - \$first_vlaue / \$second_value) * 100;

echo \$percentChange;
```

### php get percentage of two numbers

calculate a percentage change (increase and decrease) from 2 values in PHP

```function getCalculatePercentageChange(\$first_vlaue, \$second_value){
\$decreaseValue = \$first_vlaue - \$second_value;

return (\$decreaseValue / \$first_vlaue) * 100;
}
```

### PHP: Calculate the percentage difference between two numbers

```function percent_diff(\$old, \$new, \$final_per = null) {
\$total_calculate = abs((1 - (\$old / \$new)) * 100);

if (is_numeric(\$final_per)) {
\$results = \$total_calculate < \$final_per;

return \$results;
}

return \$total_calculate;
}
```

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