-31.38% is the change from 975 to 669
Calculation steps:
[( 669 - 975 ) ÷ 975] x 100 = -31.38%
Formula
Percentage change = [(669 - 975) / 975] x 100
Subtract the new number by the original number
669 - 975 = -306
-306 ÷ 975 = -0.31384615384615383
-0.31384615384615383 x 100 = -31.38%