OnInit:
    set .zenycost,1500;
    set .@cardcount,4;
    set .percardcost,1000;
    set .@i, 1000000;
    .@i -= (.zenycost+(.@cardcount * .percardcost));
    debugmes "Hi:"+.@i;
    set .@i, 1000000;
    set .@i, .@i - (.zenycost+(.@cardcount * .percardcost));
    debugmes "Hi:"+.@i; 
    end;
[Debug]: script debug : 0 110035719 : Hi:-2504
[Debug]: script debug : 0 110035719 : Hi:994500