-26.54% is the change from 211 to 155
Calculation steps:
[( 155 - 211 ) ÷ 211] x 100 = -26.54%
Formula
Percentage change = [(155 - 211) / 211] x 100
Subtract the new number by the original number
155 - 211 = -56
-56 ÷ 211 = -0.26540284360189575
-0.26540284360189575 x 100 = -26.54%
Example