-20.75% is the change from 477 to 378
Calculation steps:
[( 378 - 477 ) ÷ 477] x 100 = -20.75%
Formula
Percentage change = [(378 - 477) / 477] x 100
Subtract the new number by the original number
378 - 477 = -99
-99 ÷ 477 = -0.20754716981132076
-0.20754716981132076 x 100 = -20.75%