-31.97% is the change from 904 to 615
Calculation steps:
[( 615 - 904 ) ÷ 904] x 100 = -31.97%
Formula
Percentage change = [(615 - 904) / 904] x 100
Subtract the new number by the original number
615 - 904 = -289
-289 ÷ 904 = -0.3196902654867257
-0.3196902654867257 x 100 = -31.97%