278.08% is the change from 73 to 276
Calculation steps:
[( 276 - 73 ) ÷ 73] x 100 = 278.08%
Formula
Percentage change = [(276 - 73) / 73] x 100
Subtract the new number by the original number
276 - 73 = 203
203 ÷ 73 = 2.780821917808219
2.780821917808219 x 100 = 278.08%