1.Rate:20%
base:50
percentage:10
2.Rate:124%
base:64
percentage:80
3.Rate:8%
Base:1,200
Percentage:96
4.Rate:40%
Base:120
Percentage:48
5.Rate:25%
Base:84
Percentage:21
step-by-step explanation
The word "of" refers to the base; it is also known as as the "whole" part.
The Rate has always the "%" sign