-19.11% is the change from 811 to 656
Calculation steps:
[( 656 - 811 ) ÷ 811] x 100 = -19.11%
Formula
Percentage change = [(656 - 811) / 811] x 100
Subtract the new number by the original number
656 - 811 = -155
-155 ÷ 811 = -0.19112207151664612
-0.19112207151664612 x 100 = -19.11%