45.42% is the change from 273 to 397
Calculation steps:
[( 397 - 273 ) ÷ 273] x 100 = 45.42%
Formula
Percentage change = [(397 - 273) / 273] x 100
Subtract the new number by the original number
397 - 273 = 124
124 ÷ 273 = 0.4542124542124542
0.4542124542124542 x 100 = 45.42%