-15.23% is the change from 407 to 345
Calculation steps:
[( 345 - 407 ) ÷ 407] x 100 = -15.23%
Formula
Percentage change = [(345 - 407) / 407] x 100
Subtract the new number by the original number
345 - 407 = -62
-62 ÷ 407 = -0.15233415233415235
-0.15233415233415235 x 100 = -15.23%