-75.15% is the change from 487 to 121
Calculation steps:
[( 121 - 487 ) ÷ 487] x 100 = -75.15%
Formula
Percentage change = [(121 - 487) / 487] x 100
Subtract the new number by the original number
121 - 487 = -366
-366 ÷ 487 = -0.7515400410677618
-0.7515400410677618 x 100 = -75.15%