243.84% is the change from 73 to 251
Calculation steps:
[( 251 - 73 ) ÷ 73] x 100 = 243.84%
Formula
Percentage change = [(251 - 73) / 73] x 100
Subtract the new number by the original number
251 - 73 = 178
178 ÷ 73 = 2.4383561643835616
2.4383561643835616 x 100 = 243.84%