-38.67% is the change from 512 to 314
Calculation steps:
[( 314 - 512 ) ÷ 512] x 100 = -38.67%
Formula
Percentage change = [(314 - 512) / 512] x 100
Subtract the new number by the original number
314 - 512 = -198
-198 ÷ 512 = -0.38671875
-0.38671875 x 100 = -38.67%