-23.79% is the change from 824 to 628
Calculation steps:
[( 628 - 824 ) ÷ 824] x 100 = -23.79%
Formula
Percentage change = [(628 - 824) / 824] x 100
Subtract the new number by the original number
628 - 824 = -196
-196 ÷ 824 = -0.23786407766990292
-0.23786407766990292 x 100 = -23.79%