91.99% is the change from 437 to 839
Calculation steps:
[( 839 - 437 ) ÷ 437] x 100 = 91.99%
Formula
Percentage change = [(839 - 437) / 437] x 100
Subtract the new number by the original number
839 - 437 = 402
402 ÷ 437 = 0.919908466819222
0.919908466819222 x 100 = 91.99%