-2.33% is the change from 644 to 629
Calculation steps:
[( 629 - 644 ) ÷ 644] x 100 = -2.33%
Formula
Percentage change = [(629 - 644) / 644] x 100
Subtract the new number by the original number
629 - 644 = -15
-15 ÷ 644 = -0.023291925465838508
-0.023291925465838508 x 100 = -2.33%