-25.27% is the change from 657 to 491
Calculation steps:
[( 491 - 657 ) ÷ 657] x 100 = -25.27%
Formula
Percentage change = [(491 - 657) / 657] x 100
Subtract the new number by the original number
491 - 657 = -166
-166 ÷ 657 = -0.2526636225266362
-0.2526636225266362 x 100 = -25.27%