-26.07% is the change from 211 to 156
Calculation steps:
[( 156 - 211 ) ÷ 211] x 100 = -26.07%
Formula
Percentage change = [(156 - 211) / 211] x 100
Subtract the new number by the original number
156 - 211 = -55
-55 ÷ 211 = -0.26066350710900477
-0.26066350710900477 x 100 = -26.07%