src/Money/DataMapper/Data/Money/Abstracts/BudgetAbstract.php
public function setAmountDefault($amountDefault)
    {
        $amountDefault = (float) $amountDefault;

        if ($this->exists() && $this->amountDefault !== $amountDefault) {
            $this->updated['amountDefault'] = true;
        }

        $this->amountDefault = $amountDefault;

        return $this;
    }
public function setAmountDefault($amountDefault)
    {
        $amountDefault = (float) $amountDefault;

        if ($this->exists() && $this->amountDefault !== $amountDefault) {
            $this->updated['amountDefault'] = true;
        }

        $this->amountDefault = $amountDefault;

        return $this;
    }
Set value for field "budget_amount_default"

@param  float $amountDefault
@return $this