-45.01% is the change from 511 to 281
Calculation steps:
[( 281 - 511 ) ÷ 511] x 100 = -45.01%
Formula
Percentage change = [(281 - 511) / 511] x 100
Subtract the new number by the original number
281 - 511 = -230
-230 ÷ 511 = -0.4500978473581213
-0.4500978473581213 x 100 = -45.01%