-68.3% is the change from 511 to 162
Calculation steps:
[( 162 - 511 ) ÷ 511] x 100 = -68.3%
Formula
Percentage change = [(162 - 511) / 511] x 100
Subtract the new number by the original number
162 - 511 = -349
-349 ÷ 511 = -0.6829745596868885
-0.6829745596868885 x 100 = -68.3%