-36% is the change from 975 to 624
Calculation steps:
[( 624 - 975 ) ÷ 975] x 100 = -36%
Formula
Percentage change = [(624 - 975) / 975] x 100
Subtract the new number by the original number
624 - 975 = -351
-351 ÷ 975 = -0.36
-0.36 x 100 = -36%
Example