-84.8% is the change from 171 to 26
Calculation steps:
[( 26 - 171 ) ÷ 171] x 100 = -84.8%
Formula
Percentage change = [(26 - 171) / 171] x 100
Subtract the new number by the original number
26 - 171 = -145
-145 ÷ 171 = -0.847953216374269
-0.847953216374269 x 100 = -84.8%