-62.08% is the change from 662 to 251
Calculation steps:
[( 251 - 662 ) ÷ 662] x 100 = -62.08%
Formula
Percentage change = [(251 - 662) / 662] x 100
Subtract the new number by the original number
251 - 662 = -411
-411 ÷ 662 = -0.620845921450151
-0.620845921450151 x 100 = -62.08%