65.09% is the change from 527 to 870
Calculation steps:
[( 870 - 527 ) ÷ 527] x 100 = 65.09%
Formula
Percentage change = [(870 - 527) / 527] x 100
Subtract the new number by the original number
870 - 527 = 343
343 ÷ 527 = 0.650853889943074
0.650853889943074 x 100 = 65.09%