It is simple 200 - as in the question.
A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. A decimal representation does not require a decimal point. Adding zeros after the decimal point is wrong because they imply a degree of accuracy (significant figures) for which there is no justification.
The number in the question is already written in decimal form.
15/200:= 15 ÷ 200= 0.075 in decimal
Two hundred in decimal form = 200.0 or just 200
200% = 2.0
Expressed as a decimal, 4/200 is equal to 0.02.
2.00 Move the decimal (200.) left 2 spaces :)
It is .200, exactly as in the question.
Expressed as a decimal, this is equal to 2.
200 hundredths is 2.00
8/200 = 0.04
77/200 = 0.385
87/200 = 0.435.