-21.7% is the change from 622 to 487
Calculation steps:
[( 487 - 622 ) ÷ 622] x 100 = -21.7%
Formula
Percentage change = [(487 - 622) / 622] x 100
Subtract the new number by the original number
487 - 622 = -135
-135 ÷ 622 = -0.2170418006430868
-0.2170418006430868 x 100 = -21.7%