MV_PAYMENT_PRECISION — (partly documented)
Interchange 5.9.0:
Source: lib/Vend/Payment/ECHO.pm
Line 333 (context shows lines 323-337 in echo():274)
my $server = $opt->{server} ||
charge_param('server') ||
$::Variable->{ECHO_PAYMENT_SERVER} ||
$::Variable->{MV_PAYMENT_SERVER} ||
$::Variable->{CYBER_SERVER} ||
'https://wwws.echo-inc.com/scripts/INR200.EXE';
my $precision = $opt->{precision} ||
charge_param('precision') ||
$::Variable->{ECHO_PAYMENT_PRECISION} ||
$::Variable->{MV_PAYMENT_PRECISION} ||
$::Variable->{CYBER_PRECISION} ||
2;
##### ECHO SPECIFIC VARIABLES #####