-21.13% is the change from 478 to 377
Calculation steps:
[( 377 - 478 ) ÷ 478] x 100 = -21.13%
Formula
Percentage change = [(377 - 478) / 478] x 100
Subtract the new number by the original number
377 - 478 = -101
-101 ÷ 478 = -0.2112970711297071
-0.2112970711297071 x 100 = -21.13%