77.62% is the change from 505 to 897
Calculation steps:
[( 897 - 505 ) ÷ 505] x 100 = 77.62%
Formula
Percentage change = [(897 - 505) / 505] x 100
Subtract the new number by the original number
897 - 505 = 392
392 ÷ 505 = 0.7762376237623763
0.7762376237623763 x 100 = 77.62%