-94.65% is the change from 635 to 34
Calculation steps:
[( 34 - 635 ) ÷ 635] x 100 = -94.65%
Formula
Percentage change = [(34 - 635) / 635] x 100
Subtract the new number by the original number
34 - 635 = -601
-601 ÷ 635 = -0.9464566929133859
-0.9464566929133859 x 100 = -94.65%