-28.37% is the change from 215 to 154
Calculation steps:
[( 154 - 215 ) ÷ 215] x 100 = -28.37%
Formula
Percentage change = [(154 - 215) / 215] x 100
Subtract the new number by the original number
154 - 215 = -61
-61 ÷ 215 = -0.2837209302325581
-0.2837209302325581 x 100 = -28.37%