-75.52% is the change from 821 to 201
Calculation steps:
[( 201 - 821 ) ÷ 821] x 100 = -75.52%
Formula
Percentage change = [(201 - 821) / 821] x 100
Subtract the new number by the original number
201 - 821 = -620
-620 ÷ 821 = -0.7551766138855055
-0.7551766138855055 x 100 = -75.52%