-21.29% is the change from 479 to 377
Calculation steps:
[( 377 - 479 ) ÷ 479] x 100 = -21.29%
Formula
Percentage change = [(377 - 479) / 479] x 100
Subtract the new number by the original number
377 - 479 = -102
-102 ÷ 479 = -0.21294363256784968
-0.21294363256784968 x 100 = -21.29%