-72.11% is the change from 821 to 229
Calculation steps:
[( 229 - 821 ) ÷ 821] x 100 = -72.11%
Formula
Percentage change = [(229 - 821) / 821] x 100
Subtract the new number by the original number
229 - 821 = -592
-592 ÷ 821 = -0.7210718635809987
-0.7210718635809987 x 100 = -72.11%