-68.42% is the change from 266 to 84
Calculation steps:
[( 84 - 266 ) ÷ 266] x 100 = -68.42%
Formula
Percentage change = [(84 - 266) / 266] x 100
Subtract the new number by the original number
84 - 266 = -182
-182 ÷ 266 = -0.6842105263157895
-0.6842105263157895 x 100 = -68.42%