-5.03% is the change from 656 to 623
Calculation steps:
[( 623 - 656 ) ÷ 656] x 100 = -5.03%
Formula
Percentage change = [(623 - 656) / 656] x 100
Subtract the new number by the original number
623 - 656 = -33
-33 ÷ 656 = -0.05030487804878049
-0.05030487804878049 x 100 = -5.03%