-49.63% is the change from 401 to 202
Calculation steps:
[( 202 - 401 ) ÷ 401] x 100 = -49.63%
Formula
Percentage change = [(202 - 401) / 401] x 100
Subtract the new number by the original number
202 - 401 = -199
-199 ÷ 401 = -0.49625935162094764
-0.49625935162094764 x 100 = -49.63%