465.57% is the change from 61 to 345
Calculation steps:
[( 345 - 61 ) ÷ 61] x 100 = 465.57%
Formula
Percentage change = [(345 - 61) / 61] x 100
Subtract the new number by the original number
345 - 61 = 284
284 ÷ 61 = 4.655737704918033
4.655737704918033 x 100 = 465.57%