870% is the change from 50 to 485
Calculation steps:
[( 485 - 50 ) ÷ 50] x 100 = 870%
Formula
Percentage change = [(485 - 50) / 50] x 100
Subtract the new number by the original number
485 - 50 = 435
435 ÷ 50 = 8.7
8.7 x 100 = 870%
Example