-15.38% is the change from 845 to 715
Calculation steps:
[( 715 - 845 ) ÷ 845] x 100 = -15.38%
Formula
Percentage change = [(715 - 845) / 845] x 100
Subtract the new number by the original number
715 - 845 = -130
-130 ÷ 845 = -0.15384615384615385
-0.15384615384615385 x 100 = -15.38%