41.43% is the change from 70 to 99
Calculation steps:
[( 99 - 70 ) ÷ 70] x 100 = 41.43%
Formula
Percentage change = [(99 - 70) / 70] x 100
Subtract the new number by the original number
99 - 70 = 29
29 ÷ 70 = 0.4142857142857143
0.4142857142857143 x 100 = 41.43%