MAINT: Removed defaults from RateOfChangePercentage
MAINT: Removed defaults from RateOfChangePercentage

since it's general enough that we don't need to assume closes

humdings/zipline,alphaBenj/zipline,bartosh/zipline,magne-max/zipline-ja,bartosh/zipline,alphaBenj/zipline,quantopian/zipline,enigmampc/catalyst,humdings/zipline,florentchandelier/zipline,magne-max/zipline-ja,Scapogo/zipline,enigmampc/catalyst,florentchandelier/zipline,Scapogo/zipline,quantopian/zipline