-86.18% is the change from 152 to 21
Calculation steps:
[( 21 - 152 ) ÷ 152] x 100 = -86.18%
Formula
Percentage change = [(21 - 152) / 152] x 100
Subtract the new number by the original number
21 - 152 = -131
-131 ÷ 152 = -0.8618421052631579
-0.8618421052631579 x 100 = -86.18%