-3.22% is the change from 528 to 511
Calculation steps:
[( 511 - 528 ) ÷ 528] x 100 = -3.22%
Formula
Percentage change = [(511 - 528) / 528] x 100
Subtract the new number by the original number
511 - 528 = -17
-17 ÷ 528 = -0.032196969696969696
-0.032196969696969696 x 100 = -3.22%