-56.64% is the change from 512 to 222
Calculation steps:
[( 222 - 512 ) ÷ 512] x 100 = -56.64%
Formula
Percentage change = [(222 - 512) / 512] x 100
Subtract the new number by the original number
222 - 512 = -290
-290 ÷ 512 = -0.56640625
-0.56640625 x 100 = -56.64%