-1.7% is the change from 528 to 519
Calculation steps:
[( 519 - 528 ) ÷ 528] x 100 = -1.7%
Formula
Percentage change = [(519 - 528) / 528] x 100
Subtract the new number by the original number
519 - 528 = -9
-9 ÷ 528 = -0.017045454545454544
-0.017045454545454544 x 100 = -1.7%