-17.01% is the change from 623 to 517
Calculation steps:
[( 517 - 623 ) ÷ 623] x 100 = -17.01%
Formula
Percentage change = [(517 - 623) / 623] x 100
Subtract the new number by the original number
517 - 623 = -106
-106 ÷ 623 = -0.17014446227929375
-0.17014446227929375 x 100 = -17.01%