354.22% is the change from 83 to 377
Calculation steps:
[( 377 - 83 ) ÷ 83] x 100 = 354.22%
Formula
Percentage change = [(377 - 83) / 83] x 100
Subtract the new number by the original number
377 - 83 = 294
294 ÷ 83 = 3.5421686746987953
3.5421686746987953 x 100 = 354.22%