-94.87% is the change from 780 to 40
Calculation steps:
[( 40 - 780 ) ÷ 780] x 100 = -94.87%
Formula
Percentage change = [(40 - 780) / 780] x 100
Subtract the new number by the original number
40 - 780 = -740
-740 ÷ 780 = -0.9487179487179487
-0.9487179487179487 x 100 = -94.87%