346.99% is the change from 83 to 371
Calculation steps:
[( 371 - 83 ) ÷ 83] x 100 = 346.99%
Formula
Percentage change = [(371 - 83) / 83] x 100
Subtract the new number by the original number
371 - 83 = 288
288 ÷ 83 = 3.4698795180722892
3.4698795180722892 x 100 = 346.99%