-0.79% is the change from 630 to 625
Calculation steps:
[( 625 - 630 ) ÷ 630] x 100 = -0.79%
Formula
Percentage change = [(625 - 630) / 630] x 100
Subtract the new number by the original number
625 - 630 = -5
-5 ÷ 630 = -0.007936507936507936
-0.007936507936507936 x 100 = -0.79%