-27.47% is the change from 677 to 491
Calculation steps:
[( 491 - 677 ) ÷ 677] x 100 = -27.47%
Formula
Percentage change = [(491 - 677) / 677] x 100
Subtract the new number by the original number
491 - 677 = -186
-186 ÷ 677 = -0.27474150664697194
-0.27474150664697194 x 100 = -27.47%