-53.21% is the change from 654 to 306
Calculation steps:
[( 306 - 654 ) ÷ 654] x 100 = -53.21%
Formula
Percentage change = [(306 - 654) / 654] x 100
Subtract the new number by the original number
306 - 654 = -348
-348 ÷ 654 = -0.5321100917431193
-0.5321100917431193 x 100 = -53.21%