-92.53% is the change from 977 to 73
Calculation steps:
[( 73 - 977 ) ÷ 977] x 100 = -92.53%
Formula
Percentage change = [(73 - 977) / 977] x 100
Subtract the new number by the original number
73 - 977 = -904
-904 ÷ 977 = -0.925281473899693
-0.925281473899693 x 100 = -92.53%