-64.84% is the change from 512 to 180
Calculation steps:
[( 180 - 512 ) ÷ 512] x 100 = -64.84%
Formula
Percentage change = [(180 - 512) / 512] x 100
Subtract the new number by the original number
180 - 512 = -332
-332 ÷ 512 = -0.6484375
-0.6484375 x 100 = -64.84%