-13.64% is the change from 623 to 538
Calculation steps:
[( 538 - 623 ) ÷ 623] x 100 = -13.64%
Formula
Percentage change = [(538 - 623) / 623] x 100
Subtract the new number by the original number
538 - 623 = -85
-85 ÷ 623 = -0.13643659711075443
-0.13643659711075443 x 100 = -13.64%