-67.08% is the change from 975 to 321
Calculation steps:
[( 321 - 975 ) ÷ 975] x 100 = -67.08%
Formula
Percentage change = [(321 - 975) / 975] x 100
Subtract the new number by the original number
321 - 975 = -654
-654 ÷ 975 = -0.6707692307692308
-0.6707692307692308 x 100 = -67.08%