How to get the result data in pivotTable report?

the original data and pivotTable report

if I want to get the 1450 and give it to a variable,display it individually, how can I do?

my code is like this:

import pandas as pd
import streamlit as st
df=pd.read_csv("toushi.csv")

st.info("Original table")
st.write(df)

df1=df.pivot_table(index=['Dept'],values=['pay'],aggfunc=sum)
st.info("PivotTable report")
st.write(df1)

I get the solution:

import pandas as pd
import streamlit as st
df=pd.read_csv("toushi.csv")

st.info("Original table")
st.write(df)

df1=df.pivot_table(index=['Dept'],values=['pay'],aggfunc=sum)
st.info("PivotTable report")
st.write(df1)

df2=df.pivot_table(index=['Dept'],values=['pay'],aggfunc=sum).iloc[[0],[0]].values
st.success("PivotTable report result")
st.write(int(df2))

final result: