-92.53% is the change from 643 to 48
Calculation steps:
[( 48 - 643 ) ÷ 643] x 100 = -92.53%
Formula
Percentage change = [(48 - 643) / 643] x 100
Subtract the new number by the original number
48 - 643 = -595
-595 ÷ 643 = -0.9253499222395023
-0.9253499222395023 x 100 = -92.53%