-9.38% is the change from 512 to 464
Calculation steps:
[( 464 - 512 ) ÷ 512] x 100 = -9.38%
Formula
Percentage change = [(464 - 512) / 512] x 100
Subtract the new number by the original number
464 - 512 = -48
-48 ÷ 512 = -0.09375
-0.09375 x 100 = -9.38%