accumulative
/ˌæk.jʊ.mjʊ.ˈɪv, ˌæk.jʊ.ˈmʌ.lɪv/Definitions
1. adjective
Tending to accumulate or increase in amount or degree over time.
“The company’s accumulative profits have exceeded expectations.”
2. noun
A sum or total of amounts accumulated over time, especially in a financial context.
“The accumulative dividend paid to investors was substantial.”