-32.64% is the change from 677 to 456
Calculation steps:
[( 456 - 677 ) ÷ 677] x 100 = -32.64%
Formula
Percentage change = [(456 - 677) / 677] x 100
Subtract the new number by the original number
456 - 677 = -221
-221 ÷ 677 = -0.32644017725258495
-0.32644017725258495 x 100 = -32.64%