-36.73% is the change from 972 to 615
Calculation steps:
[( 615 - 972 ) ÷ 972] x 100 = -36.73%
Formula
Percentage change = [(615 - 972) / 972] x 100
Subtract the new number by the original number
615 - 972 = -357
-357 ÷ 972 = -0.36728395061728397
-0.36728395061728397 x 100 = -36.73%