-99.37% is the change from 633 to 4
Calculation steps:
[( 4 - 633 ) ÷ 633] x 100 = -99.37%
Formula
Percentage change = [(4 - 633) / 633] x 100
Subtract the new number by the original number
4 - 633 = -629
-629 ÷ 633 = -0.9936808846761453
-0.9936808846761453 x 100 = -99.37%