-56.51% is the change from 830 to 361
Calculation steps:
[( 361 - 830 ) ÷ 830] x 100 = -56.51%
Formula
Percentage change = [(361 - 830) / 830] x 100
Subtract the new number by the original number
361 - 830 = -469
-469 ÷ 830 = -0.5650602409638554
-0.5650602409638554 x 100 = -56.51%