-89% is the change from 727 to 80
Calculation steps:
[( 80 - 727 ) ÷ 727] x 100 = -89%
Formula
Percentage change = [(80 - 727) / 727] x 100
Subtract the new number by the original number
80 - 727 = -647
-647 ÷ 727 = -0.889958734525447
-0.889958734525447 x 100 = -89%