-32.62% is the change from 975 to 657
Calculation steps:
[( 657 - 975 ) ÷ 975] x 100 = -32.62%
Formula
Percentage change = [(657 - 975) / 975] x 100
Subtract the new number by the original number
657 - 975 = -318
-318 ÷ 975 = -0.3261538461538461
-0.3261538461538461 x 100 = -32.62%