-54.65% is the change from 677 to 307
Calculation steps:
[( 307 - 677 ) ÷ 677] x 100 = -54.65%
Formula
Percentage change = [(307 - 677) / 677] x 100
Subtract the new number by the original number
307 - 677 = -370
-370 ÷ 677 = -0.5465288035450517
-0.5465288035450517 x 100 = -54.65%