215.33% is the change from 274 to 864
Calculation steps:
[( 864 - 274 ) ÷ 274] x 100 = 215.33%
Formula
Percentage change = [(864 - 274) / 274] x 100
Subtract the new number by the original number
864 - 274 = 590
590 ÷ 274 = 2.153284671532847
2.153284671532847 x 100 = 215.33%