-18.16% is the change from 479 to 392
Calculation steps:
[( 392 - 479 ) ÷ 479] x 100 = -18.16%
Formula
Percentage change = [(392 - 479) / 479] x 100
Subtract the new number by the original number
392 - 479 = -87
-87 ÷ 479 = -0.18162839248434237
-0.18162839248434237 x 100 = -18.16%