How to display bar charts from 0? Vegalite error for Decimal

Hi all,

trying to display pandas dataframe on a barchart but the values are not starting from 0, and throwing error
“UserWarning: I don’t know how to infer vegalite type from ‘decimal’. Defaulting to nominal.”

df has 2 headers unprod and prod, and total values in decimal form, 5435.78 and 34720.76 but in barchart it removes decimal

not sure what this means?

help appriciated