-33.59% is the change from 926 to 615
Calculation steps:
[( 615 - 926 ) ÷ 926] x 100 = -33.59%
Formula
Percentage change = [(615 - 926) / 926] x 100
Subtract the new number by the original number
615 - 926 = -311
-311 ÷ 926 = -0.33585313174946
-0.33585313174946 x 100 = -33.59%