-93.89% is the change from 655 to 40
Calculation steps:
[( 40 - 655 ) ÷ 655] x 100 = -93.89%
Formula
Percentage change = [(40 - 655) / 655] x 100
Subtract the new number by the original number
40 - 655 = -615
-615 ÷ 655 = -0.9389312977099237
-0.9389312977099237 x 100 = -93.89%