I think the problem here is something to do with the weight settings. Spark's default measurement is in lbs, not kg, and I think that somewhere in the software it divides by 2.2, rather than multiplies, meaning that it credits you with about a quarter of the calories you really burned.
Try going back into your account settings, and rechecking the metric box. Also, Spark takes its calorie calculations from your most recent weigh-in, so update this also. This often seems to fix things with metric measurements.
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.
| current weight: 178.0