-0.98% is the change from 512 to 507
Calculation steps:
[( 507 - 512 ) ÷ 512] x 100 = -0.98%
Formula
Percentage change = [(507 - 512) / 512] x 100
Subtract the new number by the original number
507 - 512 = -5
-5 ÷ 512 = -0.009765625
-0.009765625 x 100 = -0.98%