-50.47% is the change from 527 to 261
Calculation steps:
[( 261 - 527 ) ÷ 527] x 100 = -50.47%
Formula
Percentage change = [(261 - 527) / 527] x 100
Subtract the new number by the original number
261 - 527 = -266
-266 ÷ 527 = -0.5047438330170778
-0.5047438330170778 x 100 = -50.47%