-37.04% is the change from 972 to 612
Calculation steps:
[( 612 - 972 ) ÷ 972] x 100 = -37.04%
Formula
Percentage change = [(612 - 972) / 972] x 100
Subtract the new number by the original number
612 - 972 = -360
-360 ÷ 972 = -0.37037037037037035
-0.37037037037037035 x 100 = -37.04%