how to find total of only one column in python pandas pivot table?

问题

My data i get from excel like;

Invoice Cost centre Invoice Category Price DataFeed Reporting Fequency
RIM                  Retail QLD      22.25  WEB      DWM
R5M                  Retail SYD      22.25  BWH      M
.....

my pivot table is like;

df = pd.read_excel(file_path, sheet_name='Invoice Details', usecols="E:F,I,L:M")                       

df['Price'] = df['Price'].astype(float)                                                                
df1 = df.groupby(["Invoice Cost Centre", "Invoice Category"]).agg({'Price': 'sum'}).reset_index()      

df = pd.pivot_table(df, index=["Invoice Cost Centre", "Invoice Category"],                             
                    columns=['Price', 'Reporting Frequency', 'Data Feed'],                             
                    aggfunc=len,                                                                       
                    fill_value=0)                                                                      

df2 = df.merge(df1, left_on=["Invoice Cost Centre", "Invoice Category"],                               
               right_on=["Invoice Cost Centre", "Invoice Category"], how='left').fillna(0) 

I want to add total value for price column only. How can I do that in pivot table?

Expected output shouild be like;

Invoice Cost Centre  Invoice Category (22.25,M,BWH) (40,DWM,WEB)...     Price
           D3TM        Retail QLD                                     1907.85
          EQUITYEMP     Retail SYD                                    104.00
           EQUITYEMP                                                   463.15
           EQUITYEMP       ...                                         62.40
           EQUITYEMP                                                   201.95

                                                               **Total=2800**

来源：https://stackoverflow.com/questions/59383476/how-to-find-total-of-only-one-column-in-python-pandas-pivot-table