ravinderk / Give

	 *

	 * @return float|false

	 */

	public function increase_earnings( $amount = 0, $payment_id = 0 ) {

		$earnings   = give_get_form_earnings_stats( $this->ID );

		/**

		 * Modify the earning amount when increasing.

		 *

		 * @since 2.1

		 *

		 * @param float $amount     Earning amount.

		 * @param int   $form_id    Donation form ID.

		 * @param int   $payment_id Donation ID.

		 */

		$amount = apply_filters( 'give_increase_form_earnings_amount', $amount, $this->ID, $payment_id );

		$new_amount = $earnings + (float) $amount;

		if ( $this->update_meta( '_give_form_earnings', $new_amount ) ) {

			$this->earnings = $new_amount;

			return $this->earnings;

		}

		return false;

	}

	/**

	 * Decrease the earnings by the given amount

	 *

	 * @return float|false

	 */

	public function decrease_earnings( $amount, $payment_id = 0 ) {

		$earnings = give_get_form_earnings_stats( $this->ID );

		if ( $earnings > 0 ) {

			/**

			 * Modify the earning value when decreasing it.

			 *

			 * @since 2.1

			 *

			 * @param float $amount     Earning amount.

			 * @param int   $form_id    Donation Form ID.

			 * @param int   $payment_id Donation ID.

			 */

			$amount = apply_filters( 'give_decrease_form_earnings_amount', $amount, $this->ID, $payment_id );

			// Only decrease if greater than zero

			$new_amount = $earnings - (float) $amount;

			if ( $this->update_meta( '_give_form_earnings', $new_amount ) ) {

				$this->earnings = $new_amount;

				return $this->earnings;

			}

		}

		return false;

	}

	/**

	 * Determine if donation form closed or not