Serialized Values for Chroma in HCT conversion are incorrect

[TriMontana]

The raw values for HCT are correct but the chroma value (second number out of three) is incorrect in the incorrect.
See below:
1.5914055313263704 is incorrectly serialized to 1.09.
 
209.54530190727974, 1.5914055313263704, 40.317679695927204 | color(--hct 209.545 1.09752% 40.3177%)

--hct 209.545 1.09752% 40.3177%)

[svgeesus]

1.5914055313263704 / 145 = 0.01097521056 which is 1.09752105609%