-27.67% is the change from 477 to 345
Calculation steps:
[( 345 - 477 ) ÷ 477] x 100 = -27.67%
Formula
Percentage change = [(345 - 477) / 477] x 100
Subtract the new number by the original number
345 - 477 = -132
-132 ÷ 477 = -0.27672955974842767
-0.27672955974842767 x 100 = -27.67%