import re
rx = r"Total Change is:\s*\S+|Changes from:.*?\d{4}\b|([-+]?\d+(?:,\d+)?)"
text = "Changes from:       August 18, 2020                                  Total Change is:    -3,029\n\n        0     -2,872        -18        898        870       -200     -2,819       -311       -112          0          2          0       -778       -388"
results = [x for x in re.findall(r'Total Change is:\s*\S+|Changes from:.*?\d{4}\b|([-+]?\d+(?:,\d+)?)', text) if x]
print(results)
 

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