-1.33% is the change from 525 to 518
Calculation steps:
[( 518 - 525 ) ÷ 525] x 100 = -1.33%
Formula
Percentage change = [(518 - 525) / 525] x 100
Subtract the new number by the original number
518 - 525 = -7
-7 ÷ 525 = -0.013333333333333334
-0.013333333333333334 x 100 = -1.33%