-81.09% is the change from 497 to 94
Calculation steps:
[( 94 - 497 ) ÷ 497] x 100 = -81.09%
Formula
Percentage change = [(94 - 497) / 497] x 100
Subtract the new number by the original number
94 - 497 = -403
-403 ÷ 497 = -0.8108651911468813
-0.8108651911468813 x 100 = -81.09%