-75.46% is the change from 493 to 121
Calculation steps:
[( 121 - 493 ) ÷ 493] x 100 = -75.46%
Formula
Percentage change = [(121 - 493) / 493] x 100
Subtract the new number by the original number
121 - 493 = -372
-372 ÷ 493 = -0.7545638945233266
-0.7545638945233266 x 100 = -75.46%