-80.1% is the change from 201 to 40
Calculation steps:
[( 40 - 201 ) ÷ 201] x 100 = -80.1%
Formula
Percentage change = [(40 - 201) / 201] x 100
Subtract the new number by the original number
40 - 201 = -161
-161 ÷ 201 = -0.8009950248756219
-0.8009950248756219 x 100 = -80.1%