Expert - $ 50 (multiple indicators, market orders), an average of $ 50-100 (availability pending orders, interdependent orders, the decision is based on the status of other orders, etc.), control of possible errors in actual trading.
Indicator: from $ 30 on average $ 50-100.
Script: from $ 25, on average, $ 20-30.
Patronage ex4 package: from $ 20 on average $ 25-50.
decompiler: from $ 20 on average $ 25-50.
Acceptance of payment: WebMoney, Moneybookers, Paypal.
Warranty and non-code algorithm