-65.23% is the change from 512 to 178
Calculation steps:
[( 178 - 512 ) ÷ 512] x 100 = -65.23%
Formula
Percentage change = [(178 - 512) / 512] x 100
Subtract the new number by the original number
178 - 512 = -334
-334 ÷ 512 = -0.65234375
-0.65234375 x 100 = -65.23%