-21.85% is the change from 270 to 211
Calculation steps:
[( 211 - 270 ) ÷ 270] x 100 = -21.85%
Formula
Percentage change = [(211 - 270) / 270] x 100
Subtract the new number by the original number
211 - 270 = -59
-59 ÷ 270 = -0.21851851851851853
-0.21851851851851853 x 100 = -21.85%