-92.74% is the change from 647 to 47
Calculation steps:
[( 47 - 647 ) ÷ 647] x 100 = -92.74%
Formula
Percentage change = [(47 - 647) / 647] x 100
Subtract the new number by the original number
47 - 647 = -600
-600 ÷ 647 = -0.9273570324574961
-0.9273570324574961 x 100 = -92.74%