-26.8% is the change from 821 to 601
Calculation steps:
[( 601 - 821 ) ÷ 821] x 100 = -26.8%
Formula
Percentage change = [(601 - 821) / 821] x 100
Subtract the new number by the original number
601 - 821 = -220
-220 ÷ 821 = -0.2679658952496955
-0.2679658952496955 x 100 = -26.8%