-95.26% is the change from 633 to 30
Calculation steps:
[( 30 - 633 ) ÷ 633] x 100 = -95.26%
Formula
Percentage change = [(30 - 633) / 633] x 100
Subtract the new number by the original number
30 - 633 = -603
-603 ÷ 633 = -0.95260663507109
-0.95260663507109 x 100 = -95.26%