-18.14% is the change from 623 to 510
Calculation steps:
[( 510 - 623 ) ÷ 623] x 100 = -18.14%
Formula
Percentage change = [(510 - 623) / 623] x 100
Subtract the new number by the original number
510 - 623 = -113
-113 ÷ 623 = -0.18138041733547353
-0.18138041733547353 x 100 = -18.14%