-62.21% is the change from 217 to 82
Calculation steps:
[( 82 - 217 ) ÷ 217] x 100 = -62.21%
Formula
Percentage change = [(82 - 217) / 217] x 100
Subtract the new number by the original number
82 - 217 = -135
-135 ÷ 217 = -0.6221198156682027
-0.6221198156682027 x 100 = -62.21%