Answer :
The answer is 15600000% because if you notice like for example lets say 40% its moved two decimal places which became a decimal to be 0.4. While changing it to decimal we put 2 decimal places on the right which became 40%. Same as this case 156000. 156000 is already in decimal form or in whole number. Thats why if u convert to percent. Move 2 decimal places to the right then there your answer is 15600000%