-55.41% is the change from 628 to 280
Calculation steps:
[( 280 - 628 ) ÷ 628] x 100 = -55.41%
Formula
Percentage change = [(280 - 628) / 628] x 100
Subtract the new number by the original number
280 - 628 = -348
-348 ÷ 628 = -0.554140127388535
-0.554140127388535 x 100 = -55.41%