...
uint256 amountTo... = _amount * (10 ** (this.decimals() - ERC20(_usdcVersion).decimals()));
...
...
if (this.decimals() >= ERC20(_usdcVersion).decimals()) {
    amountTo... = _amount * (10 ** (this.decimals() - ERC20(_usdcVersion).decimals()));
}
else {
    amountTo... = _amount / (10 ** (ERC20(_usdcVersion).decimals() - this.decimals()));
}
...
