-71.76% is the change from 811 to 229
Calculation steps:
[( 229 - 811 ) ÷ 811] x 100 = -71.76%
Formula
Percentage change = [(229 - 811) / 811] x 100
Subtract the new number by the original number
229 - 811 = -582
-582 ÷ 811 = -0.717632552404439
-0.717632552404439 x 100 = -71.76%