How to get TICKVALUE from TICKSIZE and LOTSIZE when base currency and deposit currency are the same

 

Hello,

Some brokers provides wrong tickvalue for some instrument so i would like to get it from ticksize,lotsize and spot rate between instrument base currency and deposit currency.

Actually, as the tick value is used for dynamic lot size computation, i'm wondering if i can use other information to get a correct lot size for predefined risk.

Thanks in advance for your answer.