-4.3% is the change from 651 to 623
Calculation steps:
[( 623 - 651 ) ÷ 651] x 100 = -4.3%
Formula
Percentage change = [(623 - 651) / 651] x 100
Subtract the new number by the original number
623 - 651 = -28
-28 ÷ 651 = -0.043010752688172046
-0.043010752688172046 x 100 = -4.3%