-21.01% is the change from 276 to 218
Calculation steps:
[( 218 - 276 ) ÷ 276] x 100 = -21.01%
Formula
Percentage change = [(218 - 276) / 276] x 100
Subtract the new number by the original number
218 - 276 = -58
-58 ÷ 276 = -0.21014492753623187
-0.21014492753623187 x 100 = -21.01%