Respuesta :
					                     128       100%
_____ = _____
77 x%
Cross multiply
128x=7700
divide both sides by 128
x=60.15625%
100%-60.15625%=39.84375% decrease
round to the nearest whole number....
40% decrease
Answer=40% decrease
					                
					                
					             _____ = _____
77 x%
Cross multiply
128x=7700
divide both sides by 128
x=60.15625%
100%-60.15625%=39.84375% decrease
round to the nearest whole number....
40% decrease
Answer=40% decrease
 
					                  