May I know how to write the coding to find the diferrences between the current tick price and previous tick price?
Generic code for programming assignment of a value to a variable. (Note, this may or may not work for MQL, check documentation for better examples.)
currentTick=whatever value the program you write sends to it;
programming code here, next tick comes in
check value of currentTick against value of firstTick
do something here depending on value of firstTick in relation to currentTick
(this could be calculate difference between the 2, check to see if it is higher, lower, or equal. it all depends on what you want the program to do with the information
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