379.76% is the change from 84 to 403
Calculation steps:
[( 403 - 84 ) ÷ 84] x 100 = 379.76%
Formula
Percentage change = [(403 - 84) / 84] x 100
Subtract the new number by the original number
403 - 84 = 319
319 ÷ 84 = 3.7976190476190474
3.7976190476190474 x 100 = 379.76%