87.64% is the change from 437 to 820
Calculation steps:
[( 820 - 437 ) ÷ 437] x 100 = 87.64%
Formula
Percentage change = [(820 - 437) / 437] x 100
Subtract the new number by the original number
820 - 437 = 383
383 ÷ 437 = 0.8764302059496567
0.8764302059496567 x 100 = 87.64%