250% is the change from 278 to 973
Calculation steps:
[( 973 - 278 ) ÷ 278] x 100 = 250%
Formula
Percentage change = [(973 - 278) / 278] x 100
Subtract the new number by the original number
973 - 278 = 695
695 ÷ 278 = 2.5
2.5 x 100 = 250%
Example