-49.01% is the change from 657 to 335
Calculation steps:
[( 335 - 657 ) ÷ 657] x 100 = -49.01%
Formula
Percentage change = [(335 - 657) / 657] x 100
Subtract the new number by the original number
335 - 657 = -322
-322 ÷ 657 = -0.4901065449010654
-0.4901065449010654 x 100 = -49.01%