-32.1% is the change from 377 to 256
Calculation steps:
[( 256 - 377 ) ÷ 377] x 100 = -32.1%
Formula
Percentage change = [(256 - 377) / 377] x 100
Subtract the new number by the original number
256 - 377 = -121
-121 ÷ 377 = -0.3209549071618037
-0.3209549071618037 x 100 = -32.1%