Conditional Formatting Error using IPYWidgets table

[mini_geek]

Hi all,

I’m trying to highlight all negative string values on the table below but I’m getting an error that i’m sure is because of the string formatting. Any ideas how I can modify the code to highlight the negative strings on the table?
Thanks!

def in_statements(val):
for statement in df2['Daily_Returns_Pct']:
    if statement in val:
        color = 'red'
        if val < -1 : color = 'red'
        break
return 'background-color: %s' % color

df2['Daily_Returns_Pct'] = df2.style.applymap(in_statements)

    ~/miniconda3/envs/Jlab/lib/python3.7/site-packages/ipykernel/jsonutil.py in json_clean(obj)
    195 
    196     # we don't understand it, it's probably an unserializable object
    --> 197     raise ValueError("Can't clean for JSON: %r" % obj)

    ValueError: Can't clean for JSON: <pandas.io.formats.style.Styler object at 0x11c53cf98>