-3% is the change from 534 to 518
Calculation steps:
[( 518 - 534 ) ÷ 534] x 100 = -3%
Formula
Percentage change = [(518 - 534) / 534] x 100
Subtract the new number by the original number
518 - 534 = -16
-16 ÷ 534 = -0.0299625468164794
-0.0299625468164794 x 100 = -3%