8.62% is the change from 870 to 945
Calculation steps:
[( 945 - 870 ) ÷ 870] x 100 = 8.62%
Formula
Percentage change = [(945 - 870) / 870] x 100
Subtract the new number by the original number
945 - 870 = 75
75 ÷ 870 = 0.08620689655172414
0.08620689655172414 x 100 = 8.62%