Defaults are an invented 600 W module (49.5 V, 15.2 A, 66 cells in series, coefficients -0.30, -0.25 and +0.05 %/°C). They are not a product. The preset buttons load values printed on three real datasheets (cell counts in series are assumed). The model is linear: value x (1 + coefficient x (T - 25)).
Design aid only. A 1 K step equals a 1 °C step, so %/K and %/°C are the same number; a per-°F value is 5/9 of it. Use the maker's current datasheet for the real design.