-13.32% is the change from 623 to 540
Calculation steps:
[( 540 - 623 ) ÷ 623] x 100 = -13.32%
Formula
Percentage change = [(540 - 623) / 623] x 100
Subtract the new number by the original number
540 - 623 = -83
-83 ÷ 623 = -0.1332263242375602
-0.1332263242375602 x 100 = -13.32%