-13.97% is the change from 945 to 813
Calculation steps:
[( 813 - 945 ) ÷ 945] x 100 = -13.97%
Formula
Percentage change = [(813 - 945) / 945] x 100
Subtract the new number by the original number
813 - 945 = -132
-132 ÷ 945 = -0.13968253968253969
-0.13968253968253969 x 100 = -13.97%