-40.8% is the change from 527 to 312
Calculation steps:
[( 312 - 527 ) ÷ 527] x 100 = -40.8%
Formula
Percentage change = [(312 - 527) / 527] x 100
Subtract the new number by the original number
312 - 527 = -215
-215 ÷ 527 = -0.4079696394686907
-0.4079696394686907 x 100 = -40.8%