“…The values of CEPCI 2015 (base) and CEPCI 2021 are 556.8 and 773.1. , The equipment cost in 2021 as updated by CEPCI can be calculated as follows: C equ , 2021 = C equ , 2015 CEPCI 2021 CEPCI 2015 In addition to using 2021 as an example for calculation, data for 2020 and 2022 are also included to account for the impact of different years. The CEPCI values for 2020 and 2022 are 596.2 and 797.6, respectively. , …”