-68.37% is the change from 215 to 68
Calculation steps:
[( 68 - 215 ) ÷ 215] x 100 = -68.37%
Formula
Percentage change = [(68 - 215) / 215] x 100
Subtract the new number by the original number
68 - 215 = -147
-147 ÷ 215 = -0.6837209302325581
-0.6837209302325581 x 100 = -68.37%