372.6% is the change from 73 to 345
Calculation steps:
[( 345 - 73 ) ÷ 73] x 100 = 372.6%
Formula
Percentage change = [(345 - 73) / 73] x 100
Subtract the new number by the original number
345 - 73 = 272
272 ÷ 73 = 3.7260273972602738
3.7260273972602738 x 100 = 372.6%