-93.81% is the change from 840 to 52
Calculation steps:
[( 52 - 840 ) ÷ 840] x 100 = -93.81%
Formula
Percentage change = [(52 - 840) / 840] x 100
Subtract the new number by the original number
52 - 840 = -788
-788 ÷ 840 = -0.9380952380952381
-0.9380952380952381 x 100 = -93.81%