-75.68% is the change from 662 to 161
Calculation steps:
[( 161 - 662 ) ÷ 662] x 100 = -75.68%
Formula
Percentage change = [(161 - 662) / 662] x 100
Subtract the new number by the original number
161 - 662 = -501
-501 ÷ 662 = -0.756797583081571
-0.756797583081571 x 100 = -75.68%