-63.73% is the change from 510 to 185
Calculation steps:
[( 185 - 510 ) ÷ 510] x 100 = -63.73%
Formula
Percentage change = [(185 - 510) / 510] x 100
Subtract the new number by the original number
185 - 510 = -325
-325 ÷ 510 = -0.6372549019607843
-0.6372549019607843 x 100 = -63.73%