-58.36% is the change from 831 to 346
Calculation steps:
[( 346 - 831 ) ÷ 831] x 100 = -58.36%
Formula
Percentage change = [(346 - 831) / 831] x 100
Subtract the new number by the original number
346 - 831 = -485
-485 ÷ 831 = -0.5836341756919374
-0.5836341756919374 x 100 = -58.36%