-40.73% is the change from 847 to 502
Calculation steps:
[( 502 - 847 ) ÷ 847] x 100 = -40.73%
Formula
Percentage change = [(502 - 847) / 847] x 100
Subtract the new number by the original number
502 - 847 = -345
-345 ÷ 847 = -0.40731995277449823
-0.40731995277449823 x 100 = -40.73%