-59.69% is the change from 511 to 206
Calculation steps:
[( 206 - 511 ) ÷ 511] x 100 = -59.69%
Formula
Percentage change = [(206 - 511) / 511] x 100
Subtract the new number by the original number
206 - 511 = -305
-305 ÷ 511 = -0.5968688845401174
-0.5968688845401174 x 100 = -59.69%