-62.16% is the change from 666 to 252
Calculation steps:
[( 252 - 666 ) ÷ 666] x 100 = -62.16%
Formula
Percentage change = [(252 - 666) / 666] x 100
Subtract the new number by the original number
252 - 666 = -414
-414 ÷ 666 = -0.6216216216216216
-0.6216216216216216 x 100 = -62.16%