-49.16% is the change from 657 to 334
Calculation steps:
[( 334 - 657 ) ÷ 657] x 100 = -49.16%
Formula
Percentage change = [(334 - 657) / 657] x 100
Subtract the new number by the original number
334 - 657 = -323
-323 ÷ 657 = -0.4916286149162861
-0.4916286149162861 x 100 = -49.16%