-70.78% is the change from 859 to 251
Calculation steps:
[( 251 - 859 ) ÷ 859] x 100 = -70.78%
Formula
Percentage change = [(251 - 859) / 859] x 100
Subtract the new number by the original number
251 - 859 = -608
-608 ÷ 859 = -0.7077997671711292
-0.7077997671711292 x 100 = -70.78%