-48.24% is the change from 512 to 265
Calculation steps:
[( 265 - 512 ) ÷ 512] x 100 = -48.24%
Formula
Percentage change = [(265 - 512) / 512] x 100
Subtract the new number by the original number
265 - 512 = -247
-247 ÷ 512 = -0.482421875
-0.482421875 x 100 = -48.24%