-15.38% is the change from 813 to 688
Calculation steps:
[( 688 - 813 ) ÷ 813] x 100 = -15.38%
Formula
Percentage change = [(688 - 813) / 813] x 100
Subtract the new number by the original number
688 - 813 = -125
-125 ÷ 813 = -0.15375153751537515
-0.15375153751537515 x 100 = -15.38%