-40.23% is the change from 527 to 315
Calculation steps:
[( 315 - 527 ) ÷ 527] x 100 = -40.23%
Formula
Percentage change = [(315 - 527) / 527] x 100
Subtract the new number by the original number
315 - 527 = -212
-212 ÷ 527 = -0.40227703984819735
-0.40227703984819735 x 100 = -40.23%