Problem with REST path data from Track by Aircraft

When I get the data from Track by Aircraft, the baro_altitude value seems to contain a value that was computed from change of altitude [A waypoint is added if the aircraft changes altitude by more than 100m (~330ft).]. But the values shown seem to differ by 300 m not 100 m.

Examples of items in path:
[
1604768718,
42.4709,
-71.2905,
0,
276,
false
],
[
1604768812,
42.4851,
-71.3222,
304,
8,
false
],
[
1604768977,
42.5438,
-71.31,
609,
353,
false
],
[
1604768979,
42.5443,
-71.3101,
914,
351,
false
],

Note: 0 -> 304 -> 609 -> 914 (about 300 m)

I would like to see the actual value for the waypoint and really be changes of 100 m.