-11.31% is the change from 902 to 800
Calculation steps:
[( 800 - 902 ) ÷ 902] x 100 = -11.31%
Formula
Percentage change = [(800 - 902) / 902] x 100
Subtract the new number by the original number
800 - 902 = -102
-102 ÷ 902 = -0.1130820399113082
-0.1130820399113082 x 100 = -11.31%