-2.28% is the change from 527 to 515
Calculation steps:
[( 515 - 527 ) ÷ 527] x 100 = -2.28%
Formula
Percentage change = [(515 - 527) / 527] x 100
Subtract the new number by the original number
515 - 527 = -12
-12 ÷ 527 = -0.022770398481973434
-0.022770398481973434 x 100 = -2.28%