-91.04% is the change from 938 to 84
Calculation steps:
[( 84 - 938 ) ÷ 938] x 100 = -91.04%
Formula
Percentage change = [(84 - 938) / 938] x 100
Subtract the new number by the original number
84 - 938 = -854
-854 ÷ 938 = -0.9104477611940298
-0.9104477611940298 x 100 = -91.04%