-84.34% is the change from 166 to 26
Calculation steps:
[( 26 - 166 ) ÷ 166] x 100 = -84.34%
Formula
Percentage change = [(26 - 166) / 166] x 100
Subtract the new number by the original number
26 - 166 = -140
-140 ÷ 166 = -0.8433734939759037
-0.8433734939759037 x 100 = -84.34%