-39.66% is the change from 527 to 318
Calculation steps:
[( 318 - 527 ) ÷ 527] x 100 = -39.66%
Formula
Percentage change = [(318 - 527) / 527] x 100
Subtract the new number by the original number
318 - 527 = -209
-209 ÷ 527 = -0.396584440227704
-0.396584440227704 x 100 = -39.66%