-75.27% is the change from 651 to 161
Calculation steps:
[( 161 - 651 ) ÷ 651] x 100 = -75.27%
Formula
Percentage change = [(161 - 651) / 651] x 100
Subtract the new number by the original number
161 - 651 = -490
-490 ÷ 651 = -0.7526881720430108
-0.7526881720430108 x 100 = -75.27%