5 Rappen CHF rounding (Rounding to nearest 5 cents) + Swiss Franc + Angular Pipe

How would you implement conversation logic for below requirements?

For example,

• Values between CHF 0,975 and CHF 1,024 will be rounded to CHF 1,00
• Values between CHF 1,025 and CHF 1,074 will be rounded to CHF 1,05
• Values between CHF 1,075 and CHF 1,124…