Code Coverage |
||||||||||
Lines |
Functions and Methods |
Classes and Traits |
||||||||
| Total | |
100.00% |
9 / 9 |
|
100.00% |
2 / 2 |
CRAP | |
100.00% |
1 / 1 |
| CustomerValue | |
100.00% |
9 / 9 |
|
100.00% |
2 / 2 |
7 | |
100.00% |
1 / 1 |
| getSimpleCLV | |
100.00% |
1 / 1 |
|
100.00% |
1 / 1 |
1 | |||
| getMRR | |
100.00% |
8 / 8 |
|
100.00% |
1 / 1 |
6 | |||
| 1 | <?php |
| 2 | /** |
| 3 | * Jingga |
| 4 | * |
| 5 | * PHP Version 8.1 |
| 6 | * |
| 7 | * @package phpOMS\Business\Marketing |
| 8 | * @copyright Dennis Eichhorn |
| 9 | * @license OMS License 2.0 |
| 10 | * @version 1.0.0 |
| 11 | * @link https://jingga.app |
| 12 | */ |
| 13 | declare(strict_types=1); |
| 14 | |
| 15 | namespace phpOMS\Business\Marketing; |
| 16 | |
| 17 | /** |
| 18 | * Marketing CustomerValue |
| 19 | * |
| 20 | * @package phpOMS\Business\Marketing |
| 21 | * @license OMS License 2.0 |
| 22 | * @link https://jingga.app |
| 23 | * @since 1.0.0 |
| 24 | */ |
| 25 | final class CustomerValue |
| 26 | { |
| 27 | /** |
| 28 | * Simple customer lifetime value |
| 29 | * |
| 30 | * Hazard Model |
| 31 | * |
| 32 | * @param float $margin Margin per period (or revenue/sales) |
| 33 | * @param float $retentionRate Rate of remaining customers per period (= average lifetime / (1 + average lifetime)) |
| 34 | * @param float $discountRate Cost of capital to discount future revenue |
| 35 | * |
| 36 | * @return float |
| 37 | * |
| 38 | * @since 1.0.0 |
| 39 | */ |
| 40 | public static function getSimpleCLV(float $margin, float $retentionRate, float $discountRate) : float |
| 41 | { |
| 42 | return $margin * $retentionRate / (1 + $discountRate - $retentionRate); |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * Normalized measure of recurring revenue |
| 47 | * |
| 48 | * @param array $revenues Revenues |
| 49 | * @param int $periods Amount of revenue periods |
| 50 | * @param float $lowerCutoff Normalization cutoff (which lower values should be ignored) |
| 51 | * @param float $upperCutoff Normalization cutoff (which upper values should be ignored) |
| 52 | * |
| 53 | * @return float |
| 54 | * |
| 55 | * @since 1.0.0 |
| 56 | */ |
| 57 | public static function getMRR(array $revenues, int $periods = 12, float $lowerCutoff = 0.1, float $upperCutoff = 0.0) : float |
| 58 | { |
| 59 | if ($lowerCutoff === 0.0 && $upperCutoff === 0.0) { |
| 60 | return \array_sum($revenues) / $periods; |
| 61 | } |
| 62 | |
| 63 | \sort($revenues); |
| 64 | |
| 65 | $sum = 0.0; |
| 66 | foreach ($revenues as $revenue) { |
| 67 | if ($revenue >= $lowerCutoff && $revenue <= $upperCutoff) { |
| 68 | $sum += $revenue; |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | return $sum / $periods; |
| 73 | } |
| 74 | } |