-1.71% is the change from 527 to 518
Calculation steps:
[( 518 - 527 ) ÷ 527] x 100 = -1.71%
Formula
Percentage change = [(518 - 527) / 527] x 100
Subtract the new number by the original number
518 - 527 = -9
-9 ÷ 527 = -0.017077798861480076
-0.017077798861480076 x 100 = -1.71%