-92.28% is the change from 635 to 49
Calculation steps:
[( 49 - 635 ) ÷ 635] x 100 = -92.28%
Formula
Percentage change = [(49 - 635) / 635] x 100
Subtract the new number by the original number
49 - 635 = -586
-586 ÷ 635 = -0.9228346456692913
-0.9228346456692913 x 100 = -92.28%