-18.94% is the change from 813 to 659
Calculation steps:
[( 659 - 813 ) ÷ 813] x 100 = -18.94%
Formula
Percentage change = [(659 - 813) / 813] x 100
Subtract the new number by the original number
659 - 813 = -154
-154 ÷ 813 = -0.18942189421894218
-0.18942189421894218 x 100 = -18.94%