264.86% is the change from 74 to 270
Calculation steps:
[( 270 - 74 ) ÷ 74] x 100 = 264.86%
Formula
Percentage change = [(270 - 74) / 74] x 100
Subtract the new number by the original number
270 - 74 = 196
196 ÷ 74 = 2.6486486486486487
2.6486486486486487 x 100 = 264.86%