-1.33% is the change from 527 to 520
Calculation steps:
[( 520 - 527 ) ÷ 527] x 100 = -1.33%
Formula
Percentage change = [(520 - 527) / 527] x 100
Subtract the new number by the original number
520 - 527 = -7
-7 ÷ 527 = -0.013282732447817837
-0.013282732447817837 x 100 = -1.33%