Busy to Tally Data Transfer Service Charge

Upto 1000 vouchers including voucher-dependent masters :
Rs.1800/- for each financial year in a single compnay
More than 1000 vouchers including voucher-dependent masters :
Rs.1800/- + 27 paise per additional voucher for each financial year in a single company
An illustration to clarify the pricing for 2500 Vouchers
Total Charges Rs.2205/-
1800/- (1000 vouchers) + 405/- (1500 vouchers X 0.27) = 2205/-