-2.85% is the change from 527 to 512
Calculation steps:
[( 512 - 527 ) ÷ 527] x 100 = -2.85%
Formula
Percentage change = [(512 - 527) / 527] x 100
Subtract the new number by the original number
512 - 527 = -15
-15 ÷ 527 = -0.028462998102466792
-0.028462998102466792 x 100 = -2.85%