82.49% is the change from 337 to 615
Calculation steps:
[( 615 - 337 ) ÷ 337] x 100 = 82.49%
Formula
Percentage change = [(615 - 337) / 337] x 100
Subtract the new number by the original number
615 - 337 = 278
278 ÷ 337 = 0.8249258160237388
0.8249258160237388 x 100 = 82.49%