-0.63% is the change from 630 to 626
Calculation steps:
[( 626 - 630 ) ÷ 630] x 100 = -0.63%
Formula
Percentage change = [(626 - 630) / 630] x 100
Subtract the new number by the original number
626 - 630 = -4
-4 ÷ 630 = -0.006349206349206349
-0.006349206349206349 x 100 = -0.63%