338.37% is the change from 86 to 377
Calculation steps:
[( 377 - 86 ) ÷ 86] x 100 = 338.37%
Formula
Percentage change = [(377 - 86) / 86] x 100
Subtract the new number by the original number
377 - 86 = 291
291 ÷ 86 = 3.383720930232558
3.383720930232558 x 100 = 338.37%