-15.22% is the change from 959 to 813
Calculation steps:
[( 813 - 959 ) ÷ 959] x 100 = -15.22%
Formula
Percentage change = [(813 - 959) / 959] x 100
Subtract the new number by the original number
813 - 959 = -146
-146 ÷ 959 = -0.15224191866527634
-0.15224191866527634 x 100 = -15.22%