-6.99% is the change from 544 to 506
Calculation steps:
[( 506 - 544 ) ÷ 544] x 100 = -6.99%
Formula
Percentage change = [(506 - 544) / 544] x 100
Subtract the new number by the original number
506 - 544 = -38
-38 ÷ 544 = -0.06985294117647059
-0.06985294117647059 x 100 = -6.99%