-47.1% is the change from 966 to 511
Calculation steps:
[( 511 - 966 ) ÷ 966] x 100 = -47.1%
Formula
Percentage change = [(511 - 966) / 966] x 100
Subtract the new number by the original number
511 - 966 = -455
-455 ÷ 966 = -0.47101449275362317
-0.47101449275362317 x 100 = -47.1%