40.75% is the change from 346 to 487
Calculation steps:
[( 487 - 346 ) ÷ 346] x 100 = 40.75%
Formula
Percentage change = [(487 - 346) / 346] x 100
Subtract the new number by the original number
487 - 346 = 141
141 ÷ 346 = 0.407514450867052
0.407514450867052 x 100 = 40.75%