245.02% is the change from 251 to 866
Calculation steps:
[( 866 - 251 ) ÷ 251] x 100 = 245.02%
Formula
Percentage change = [(866 - 251) / 251] x 100
Subtract the new number by the original number
866 - 251 = 615
615 ÷ 251 = 2.450199203187251
2.450199203187251 x 100 = 245.02%