268.92% is the change from 74 to 273
Calculation steps:
[( 273 - 74 ) ÷ 74] x 100 = 268.92%
Formula
Percentage change = [(273 - 74) / 74] x 100
Subtract the new number by the original number
273 - 74 = 199
199 ÷ 74 = 2.689189189189189
2.689189189189189 x 100 = 268.92%