-18.81% is the change from 622 to 505
Calculation steps:
[( 505 - 622 ) ÷ 622] x 100 = -18.81%
Formula
Percentage change = [(505 - 622) / 622] x 100
Subtract the new number by the original number
505 - 622 = -117
-117 ÷ 622 = -0.18810289389067525
-0.18810289389067525 x 100 = -18.81%