B: Configure a varying amount based on the hourly rate: Valuation bases are rates used to value other wage types with a rate listed in the valuation basis multiplied by a quantity (most often number of hours). These can be wage types with mask /0xx where /0 is a constant and xx are arbitrary characters1.
C: Configure a varying amount based on pay scale group and pay scale level: Values from tariff table T510 are set depending on tariff data from IT 0008 and the wage type1.
E: Assign a fixed amount: Values from the T510J evaluation constant table are set depending on the modifier set in the rule for payroll calculation and the wage type1. References =
https://help.sap.com/docs/r/659325223d7d437388161c0c4da88ef6/EHP8_HRSP_77/en-US/19446a534817f863e

To create a new personnel calculation rule, you need to use transaction PE01. This transaction allows you to access the rule editor, where you can define the rule type, the variable key, and the operations for the rule. You can also assign the rule to a payroll schema or a sub-schema using transaction PE02. The other transactions are not relevant for creating a new personnel calculation rule. PA30 is used to maintain employee master data, PA03 is used to display payroll control records, and PE02 is used to maintain payroll schemas and sub-schemas. References = Payroll Operations, Payroll Schemas and Personnel Calculation Rules PCR SAP HCM (HR), Personnel Calculation Rules