-89.47% is the change from 940 to 99
Calculation steps:
[( 99 - 940 ) ÷ 940] x 100 = -89.47%
Formula
Percentage change = [(99 - 940) / 940] x 100
Subtract the new number by the original number
99 - 940 = -841
-841 ÷ 940 = -0.8946808510638298
-0.8946808510638298 x 100 = -89.47%