there is a difference betveen addition and multiplication though.
for example if we multiply 150% base by 50% be basically have: 1.5 * 1.5 = 2.25 (like with 1.5 crit damage multiplier and 1.5 warfare multiplier in a case of 10 warfare)
while adding another 50% to 150% will lead us to 200% (like when we level our crit damage via soundrel10)