87.52% is the change from 505 to 947
Calculation steps:
[( 947 - 505 ) ÷ 505] x 100 = 87.52%
Formula
Percentage change = [(947 - 505) / 505] x 100
Subtract the new number by the original number
947 - 505 = 442
442 ÷ 505 = 0.8752475247524752
0.8752475247524752 x 100 = 87.52%