-72.61% is the change from 807 to 221
Calculation steps:
[( 221 - 807 ) ÷ 807] x 100 = -72.61%
Formula
Percentage change = [(221 - 807) / 807] x 100
Subtract the new number by the original number
221 - 807 = -586
-586 ÷ 807 = -0.7261462205700124
-0.7261462205700124 x 100 = -72.61%