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Table 6 Sensitivity analysis of effect of smartcard use and cashier windows on incremental cost and waiting time

From: Incremental analysis of the reengineering of an outpatient billing process: an empirical study in a public hospital

Number clerks

% Smartcard

Volume cash

Volume smartcard

Reengineering billing cost

Incremental cost

Waiting time estimation

Time saving

5

0.0%

28800

0

186,336

0

8.05

0

10.0%

25920

2880

191,923

5,587

7.25

0.81

20.0%

23040

5760

197,510

11,174

6.44

1.61

30.0%

20160

8640

203,098

16,762

5.64

2.42

40.0%

17280

11520

208,685

22,349

4.83

3.22

50.0%

14400

14400

214,272

27,936

4.03

4.03

4

0.0%

28800

0

156,703

−29,633

10.06

−2.01

10.0%

25920

2880

162,290

−24,046

9.06

−1.01

20.0%

23040

5760

167,877

−18,459

8.05

0

30.0%

20160

8640

173,465

−12,871

7.04

1.01

40.0%

17280

11520

179,052

−7,284

6.04

2.01

50.0%

14400

14400

184,639

−1,697

5.03

3.02

53.0%

13536

15264

186,315

−21

4.73

3.32