-49.55% is the change from 662 to 334
Calculation steps:
[( 334 - 662 ) ÷ 662] x 100 = -49.55%
Formula
Percentage change = [(334 - 662) / 662] x 100
Subtract the new number by the original number
334 - 662 = -328
-328 ÷ 662 = -0.4954682779456193
-0.4954682779456193 x 100 = -49.55%