-53.78% is the change from 662 to 306
Calculation steps:
[( 306 - 662 ) ÷ 662] x 100 = -53.78%
Formula
Percentage change = [(306 - 662) / 662] x 100
Subtract the new number by the original number
306 - 662 = -356
-356 ÷ 662 = -0.5377643504531722
-0.5377643504531722 x 100 = -53.78%