-63.44% is the change from 506 to 185
Calculation steps:
[( 185 - 506 ) ÷ 506] x 100 = -63.44%
Formula
Percentage change = [(185 - 506) / 506] x 100
Subtract the new number by the original number
185 - 506 = -321
-321 ÷ 506 = -0.6343873517786561
-0.6343873517786561 x 100 = -63.44%