447.95% is the change from 73 to 400
Calculation steps:
[( 400 - 73 ) ÷ 73] x 100 = 447.95%
Formula
Percentage change = [(400 - 73) / 73] x 100
Subtract the new number by the original number
400 - 73 = 327
327 ÷ 73 = 4.47945205479452
4.47945205479452 x 100 = 447.95%