It's supposed to make counting your loose change both convenient and easy, but an Action News investigation is calling into question the accuracy of some coin counting kiosks.

Are you being short-changed by coin-counting machines? To find out, the Rossen Reports team tried various ones... and got varying results.

The Money Machine coin counter provides Morrisons customers with the industry’s fastest and most reliable self-service coin processor, counting 4,100 mixed coins per minute at 99.995% accuracy.