-73.24% is the change from 826 to 221
Calculation steps:
[( 221 - 826 ) ÷ 826] x 100 = -73.24%
Formula
Percentage change = [(221 - 826) / 826] x 100
Subtract the new number by the original number
221 - 826 = -605
-605 ÷ 826 = -0.7324455205811138
-0.7324455205811138 x 100 = -73.24%