152.17% is the change from 345 to 870
Calculation steps:
[( 870 - 345 ) ÷ 345] x 100 = 152.17%
Formula
Percentage change = [(870 - 345) / 345] x 100
Subtract the new number by the original number
870 - 345 = 525
525 ÷ 345 = 1.5217391304347827
1.5217391304347827 x 100 = 152.17%