-13.46% is the change from 624 to 540
Calculation steps:
[( 540 - 624 ) ÷ 624] x 100 = -13.46%
Formula
Percentage change = [(540 - 624) / 624] x 100
Subtract the new number by the original number
540 - 624 = -84
-84 ÷ 624 = -0.1346153846153846
-0.1346153846153846 x 100 = -13.46%