-18.57% is the change from 781 to 636
Calculation steps:
[( 636 - 781 ) ÷ 781] x 100 = -18.57%
Formula
Percentage change = [(636 - 781) / 781] x 100
Subtract the new number by the original number
636 - 781 = -145
-145 ÷ 781 = -0.1856594110115237
-0.1856594110115237 x 100 = -18.57%