-17.5% is the change from 623 to 514
Calculation steps:
[( 514 - 623 ) ÷ 623] x 100 = -17.5%
Formula
Percentage change = [(514 - 623) / 623] x 100
Subtract the new number by the original number
514 - 623 = -109
-109 ÷ 623 = -0.17495987158908508
-0.17495987158908508 x 100 = -17.5%