Need help amalgamating two scripts

[wavic]

You have a list with values ["-500", "+280", "+962", "-2088"] and whant to sum them?

In [1]: l = "balance: -£500 yes no perhaps?"

In [2]: print("{}".format(l.split()[1].replace("£", "")))
-500

In [3]: balance = ["-500", "+280", "+962", "-2088"]

In [4]: b = [int(v.strip('+')) for v in balance]

In [5]: b
Out[5]: [-500, 280, 962, -2088]

In [6]: sum(b)
Out[6]: -1346

str.strip(",.!@?") removes desired symbols from both sides of a string. Default are the blank symbols: \n, \r and space