279.45% is the change from 73 to 277
Calculation steps:
[( 277 - 73 ) ÷ 73] x 100 = 279.45%
Formula
Percentage change = [(277 - 73) / 73] x 100
Subtract the new number by the original number
277 - 73 = 204
204 ÷ 73 = 2.7945205479452055
2.7945205479452055 x 100 = 279.45%