-63.8% is the change from 511 to 185
Calculation steps:
[( 185 - 511 ) ÷ 511] x 100 = -63.8%
Formula
Percentage change = [(185 - 511) / 511] x 100
Subtract the new number by the original number
185 - 511 = -326
-326 ÷ 511 = -0.6379647749510763
-0.6379647749510763 x 100 = -63.8%