-32.03% is the change from 512 to 348
Calculation steps:
[( 348 - 512 ) ÷ 512] x 100 = -32.03%
Formula
Percentage change = [(348 - 512) / 512] x 100
Subtract the new number by the original number
348 - 512 = -164
-164 ÷ 512 = -0.3203125
-0.3203125 x 100 = -32.03%