-8.11% is the change from 913 to 839
Calculation steps:
[( 839 - 913 ) ÷ 913] x 100 = -8.11%
Formula
Percentage change = [(839 - 913) / 913] x 100
Subtract the new number by the original number
839 - 913 = -74
-74 ÷ 913 = -0.08105147864184009
-0.08105147864184009 x 100 = -8.11%