-58.98% is the change from 512 to 210
Calculation steps:
[( 210 - 512 ) ÷ 512] x 100 = -58.98%
Formula
Percentage change = [(210 - 512) / 512] x 100
Subtract the new number by the original number
210 - 512 = -302
-302 ÷ 512 = -0.58984375
-0.58984375 x 100 = -58.98%