91.99% is the change from 337 to 647
Calculation steps:
[( 647 - 337 ) ÷ 337] x 100 = 91.99%
Formula
Percentage change = [(647 - 337) / 337] x 100
Subtract the new number by the original number
647 - 337 = 310
310 ÷ 337 = 0.9198813056379822
0.9198813056379822 x 100 = 91.99%