91.32% is the change from 507 to 970
Calculation steps:
[( 970 - 507 ) ÷ 507] x 100 = 91.32%
Formula
Percentage change = [(970 - 507) / 507] x 100
Subtract the new number by the original number
970 - 507 = 463
463 ÷ 507 = 0.9132149901380671
0.9132149901380671 x 100 = 91.32%