-64.82% is the change from 506 to 178
Calculation steps:
[( 178 - 506 ) ÷ 506] x 100 = -64.82%
Formula
Percentage change = [(178 - 506) / 506] x 100
Subtract the new number by the original number
178 - 506 = -328
-328 ÷ 506 = -0.6482213438735178
-0.6482213438735178 x 100 = -64.82%