-10.3% is the change from 913 to 819
Calculation steps:
[( 819 - 913 ) ÷ 913] x 100 = -10.3%
Formula
Percentage change = [(819 - 913) / 913] x 100
Subtract the new number by the original number
819 - 913 = -94
-94 ÷ 913 = -0.10295728368017525
-0.10295728368017525 x 100 = -10.3%