-73.24% is the change from 811 to 217
Calculation steps:
[( 217 - 811 ) ÷ 811] x 100 = -73.24%
Formula
Percentage change = [(217 - 811) / 811] x 100
Subtract the new number by the original number
217 - 811 = -594
-594 ÷ 811 = -0.7324290998766955
-0.7324290998766955 x 100 = -73.24%