-72.51% is the change from 622 to 171
Calculation steps:
[( 171 - 622 ) ÷ 622] x 100 = -72.51%
Formula
Percentage change = [(171 - 622) / 622] x 100
Subtract the new number by the original number
171 - 622 = -451
-451 ÷ 622 = -0.72508038585209
-0.72508038585209 x 100 = -72.51%