-25.06% is the change from 838 to 628
Calculation steps:
[( 628 - 838 ) ÷ 838] x 100 = -25.06%
Formula
Percentage change = [(628 - 838) / 838] x 100
Subtract the new number by the original number
628 - 838 = -210
-210 ÷ 838 = -0.25059665871121717
-0.25059665871121717 x 100 = -25.06%