Respuesta :
you would find the difference of the prices and divide the value by the original price. the difference would be $80, 80/400 is 1/5 which is 20%
400------100%
480------X%
400X=480x100
400x=4800
x=4800/400
x=12%
the rent increased by 12%
480------X%
400X=480x100
400x=4800
x=4800/400
x=12%
the rent increased by 12%
