/**
* @inheritdoc
*/
protected function calculateValue(Value $value, Unit $targetUnit) : Value
{
$conversionMap = $targetUnit->getConvertUnitMap();
$valueToConvert = $value->getValue();
$valueUnitValue = $conversionMap[(string) $value->getUnit()];
$targetUnitValue = $conversionMap[(string) $targetUnit];
$convertedValue = bcdiv(bcmul($valueToConvert, $targetUnitValue, 5), $valueUnitValue, 2);
return new Value($convertedValue, $targetUnit);
}
public function __construct(Unit $valueUnit, Unit $targetUnit)
{
parent::__construct(sprintf(static::ERROR_MESSAGE, $valueUnit->getName(), $targetUnit->getName()));
}