Number Formatting in DataFrame

How can I format a subset of a DataFrame according to a custom formatting logic?

Before:

	Country	Last	Previous	Abs. Change
0	United States	8.60	8.30	0.30
1	Japan	2.50	2.50	0.00
2	China	2.00	2.10	-0.10
3	United Kingdom	9.10	9.00	0.10
4	Euro Area	8.10	7.40	0.70

After:

	Country	Last	Previous	Abs. Change
0	United States	8.6	8.3	30 bp
1	Japan	2.5	2.5	0 bp
2	China	2.0	2.1	-10 bp
3	United Kingdom	9.1	9.0	10 bp
4	Euro Area	8.1	7.4	70 bp

Answer

Original Data:

df = pd.DataFrame({'Country': ['United States', 'Japan','China','United Kingdom','Euro Area'],
                    'Last': [8.60, 2.50, 2.00, 9.10, 8.10],
                    'Previous': [8.30, 2.50, 2.10, 9.00, 7.40],
                    'Abs. Change': [0.30, 0.00, -0.10, 0.10, 0.70]})

1 decimal rounding

df[['Country', 'Last', 'Previous']] = df[['Country', 'Last', 'Previous']].round(1)

Add bp

df['Abs. Change'] = df['Abs. Change'].apply(lambda x: str(x) + ' bp')

Result

print(df)

         Country  Last  Previous Abs. Change
0   United States   8.6       8.3      0.3 bp
1           Japan   2.5       2.5      0.0 bp
2           China   2.0       2.1     -0.1 bp
3  United Kingdom   9.1       9.0      0.1 bp
4       Euro Area   8.1       7.4      0.7 bp