Float and Double values are handled as normal JSON. Depending on the precision of the language sending/receiving the data can depend on the truncation of the decimal points. However due to the context of our data, only location lat/lng numbers will normally have more than 2-3 points.
{
"cost": 55.5,
"lat": 50.71245750791539,
"lng": -2.4619866156242995
}