-19.77% is the change from 511 to 410
Calculation steps:
[( 410 - 511 ) ÷ 511] x 100 = -19.77%
Formula
Percentage change = [(410 - 511) / 511] x 100
Subtract the new number by the original number
410 - 511 = -101
-101 ÷ 511 = -0.19765166340508805
-0.19765166340508805 x 100 = -19.77%